diff --git a/res/css/views/rooms/_LegacyRoomHeader.pcss b/res/css/views/rooms/_LegacyRoomHeader.pcss
index d9d2f4b22d1..9994f4223ea 100644
--- a/res/css/views/rooms/_LegacyRoomHeader.pcss
+++ b/res/css/views/rooms/_LegacyRoomHeader.pcss
@@ -212,17 +212,17 @@ limitations under the License.
     top: var(--RoomHeader-indicator-dot-offset);
     margin: 4px;
 
-    &.mx_Indicator_red {
+    &.mx_Indicator_highlight {
         background: $alert;
         box-shadow: $alert;
     }
 
-    &.mx_Indicator_gray {
+    &.mx_Indicator_notification {
         background: $room-icon-unread-color;
         box-shadow: $room-icon-unread-color;
     }
 
-    &.mx_Indicator_bold {
+    &.mx_Indicator_activity {
         background: $primary-content;
         box-shadow: $primary-content;
     }
diff --git a/res/css/views/rooms/_ThreadSummary.pcss b/res/css/views/rooms/_ThreadSummary.pcss
index 78a9d9e5292..ccfc527974c 100644
--- a/res/css/views/rooms/_ThreadSummary.pcss
+++ b/res/css/views/rooms/_ThreadSummary.pcss
@@ -83,11 +83,6 @@ limitations under the License.
         }
     }
 
-    &::before {
-        @mixin ThreadSummaryIcon;
-        align-self: center; /* v-align the threads icon */
-    }
-
     .mx_ThreadSummary_sender,
     .mx_ThreadSummary_content,
     .mx_ThreadSummary_replies_amount {
diff --git a/src/RoomNotifs.ts b/src/RoomNotifs.ts
index aa696f6e29c..7a65acadfc8 100644
--- a/src/RoomNotifs.ts
+++ b/src/RoomNotifs.ts
@@ -24,7 +24,7 @@ import {
 } from "matrix-js-sdk/src/matrix";
 
 import type { IPushRule, Room, MatrixClient } from "matrix-js-sdk/src/matrix";
-import { NotificationColor } from "./stores/notifications/NotificationColor";
+import { NotificationLevel } from "./stores/notifications/NotificationLevel";
 import { getUnsentMessages } from "./components/structures/RoomStatusBar";
 import { doesRoomHaveUnreadMessages, doesRoomOrThreadHaveUnreadMessages } from "./Unread";
 import { EffectiveMembership, getEffectiveMembership, isKnockDenied } from "./utils/membership";
@@ -227,25 +227,25 @@ function isMuteRule(rule: IPushRule): boolean {
 export function determineUnreadState(
     room?: Room,
     threadId?: string,
-): { color: NotificationColor; symbol: string | null; count: number } {
+): { level: NotificationLevel; symbol: string | null; count: number } {
     if (!room) {
-        return { symbol: null, count: 0, color: NotificationColor.None };
+        return { symbol: null, count: 0, level: NotificationLevel.None };
     }
 
     if (getUnsentMessages(room, threadId).length > 0) {
-        return { symbol: "!", count: 1, color: NotificationColor.Unsent };
+        return { symbol: "!", count: 1, level: NotificationLevel.Unsent };
     }
 
     if (getEffectiveMembership(room.getMyMembership()) === EffectiveMembership.Invite) {
-        return { symbol: "!", count: 1, color: NotificationColor.Red };
+        return { symbol: "!", count: 1, level: NotificationLevel.Highlight };
     }
 
     if (SettingsStore.getValue("feature_ask_to_join") && isKnockDenied(room)) {
-        return { symbol: "!", count: 1, color: NotificationColor.Red };
+        return { symbol: "!", count: 1, level: NotificationLevel.Highlight };
     }
 
     if (getRoomNotifsState(room.client, room.roomId) === RoomNotifState.Mute) {
-        return { symbol: null, count: 0, color: NotificationColor.None };
+        return { symbol: null, count: 0, level: NotificationLevel.None };
     }
 
     const redNotifs = getUnreadNotificationCount(room, NotificationCountType.Highlight, threadId);
@@ -253,11 +253,11 @@ export function determineUnreadState(
 
     const trueCount = greyNotifs || redNotifs;
     if (redNotifs > 0) {
-        return { symbol: null, count: trueCount, color: NotificationColor.Red };
+        return { symbol: null, count: trueCount, level: NotificationLevel.Highlight };
     }
 
     if (greyNotifs > 0) {
-        return { symbol: null, count: trueCount, color: NotificationColor.Grey };
+        return { symbol: null, count: trueCount, level: NotificationLevel.Notification };
     }
 
     // We don't have any notified messages, but we might have unread messages. Let's find out.
@@ -275,6 +275,6 @@ export function determineUnreadState(
     return {
         symbol: null,
         count: trueCount,
-        color: hasUnread ? NotificationColor.Bold : NotificationColor.None,
+        level: hasUnread ? NotificationLevel.Activity : NotificationLevel.None,
     };
 }
diff --git a/src/components/structures/MatrixChat.tsx b/src/components/structures/MatrixChat.tsx
index c998989599b..4c11595d8b4 100644
--- a/src/components/structures/MatrixChat.tsx
+++ b/src/components/structures/MatrixChat.tsx
@@ -140,7 +140,7 @@ import GenericToast from "../views/toasts/GenericToast";
 import RovingSpotlightDialog from "../views/dialogs/spotlight/SpotlightDialog";
 import { findDMForUser } from "../../utils/dm/findDMForUser";
 import { Linkify } from "../../HtmlUtils";
-import { NotificationColor } from "../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../stores/notifications/NotificationLevel";
 import { UserTab } from "../views/dialogs/UserTab";
 import { shouldSkipSetupEncryption } from "../../utils/crypto/shouldSkipSetupEncryption";
 import { Filter } from "../views/dialogs/spotlight/Filter";
@@ -2019,7 +2019,7 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         }
         if (numUnreadRooms > 0) {
             this.subTitleStatus += `[${numUnreadRooms}]`;
-        } else if (notificationState.color >= NotificationColor.Bold) {
+        } else if (notificationState.level >= NotificationLevel.Activity) {
             this.subTitleStatus += `*`;
         }
 
diff --git a/src/components/views/context_menus/RoomGeneralContextMenu.tsx b/src/components/views/context_menus/RoomGeneralContextMenu.tsx
index 8e96c028704..4cfd2ed6040 100644
--- a/src/components/views/context_menus/RoomGeneralContextMenu.tsx
+++ b/src/components/views/context_menus/RoomGeneralContextMenu.tsx
@@ -26,7 +26,7 @@ import { useEventEmitterState } from "../../../hooks/useEventEmitter";
 import { useUnreadNotifications } from "../../../hooks/useUnreadNotifications";
 import { getKeyBindingsManager } from "../../../KeyBindingsManager";
 import { _t } from "../../../languageHandler";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import { DefaultTagID, TagID } from "../../../stores/room-list/models";
 import RoomListStore, { LISTS_UPDATE_EVENT } from "../../../stores/room-list/RoomListStore";
 import DMRoomMap from "../../../utils/DMRoomMap";
@@ -212,9 +212,9 @@ export const RoomGeneralContextMenu: React.FC<RoomGeneralContextMenuProps> = ({
         );
     }
 
-    const { color } = useUnreadNotifications(room);
+    const { level } = useUnreadNotifications(room);
     const markAsReadOption: JSX.Element | null =
-        color > NotificationColor.None ? (
+        level > NotificationLevel.None ? (
             <IconizedContextMenuCheckbox
                 onClick={() => {
                     clearRoomNotification(room, cli);
diff --git a/src/components/views/dialogs/devtools/RoomNotifications.tsx b/src/components/views/dialogs/devtools/RoomNotifications.tsx
index f1bd13647f7..5a43eeb935e 100644
--- a/src/components/views/dialogs/devtools/RoomNotifications.tsx
+++ b/src/components/views/dialogs/devtools/RoomNotifications.tsx
@@ -22,7 +22,7 @@ import MatrixClientContext from "../../../../contexts/MatrixClientContext";
 import { useNotificationState } from "../../../../hooks/useRoomNotificationState";
 import { _t, _td } from "../../../../languageHandler";
 import { determineUnreadState } from "../../../../RoomNotifs";
-import { humanReadableNotificationColor } from "../../../../stores/notifications/NotificationColor";
+import { humanReadableNotificationLevel } from "../../../../stores/notifications/NotificationLevel";
 import { doesRoomOrThreadHaveUnreadMessages } from "../../../../Unread";
 import BaseTool, { DevtoolsContext, IDevtoolsProps } from "./BaseTool";
 
@@ -68,7 +68,7 @@ export default function RoomNotifications({ onBack }: IDevtoolsProps): JSX.Eleme
     const { room } = useContext(DevtoolsContext);
     const cli = useContext(MatrixClientContext);
 
-    const { color, count } = determineUnreadState(room);
+    const { level, count } = determineUnreadState(room);
     const [notificationState] = useNotificationState(room);
 
     return (
@@ -81,7 +81,7 @@ export default function RoomNotifications({ onBack }: IDevtoolsProps): JSX.Eleme
                             ? _t(
                                   "devtools|room_unread_status_count",
                                   {
-                                      status: humanReadableNotificationColor(color),
+                                      status: humanReadableNotificationLevel(level),
                                       count,
                                   },
                                   {
@@ -91,7 +91,7 @@ export default function RoomNotifications({ onBack }: IDevtoolsProps): JSX.Eleme
                             : _t(
                                   "devtools|room_unread_status",
                                   {
-                                      status: humanReadableNotificationColor(color),
+                                      status: humanReadableNotificationLevel(level),
                                   },
                                   {
                                       strong: (sub) => <strong>{sub}</strong>,
diff --git a/src/components/views/right_panel/HeaderButtons.tsx b/src/components/views/right_panel/HeaderButtons.tsx
index dbdd2f10b5b..35c2275adef 100644
--- a/src/components/views/right_panel/HeaderButtons.tsx
+++ b/src/components/views/right_panel/HeaderButtons.tsx
@@ -24,7 +24,7 @@ import dis from "../../../dispatcher/dispatcher";
 import RightPanelStore from "../../../stores/right-panel/RightPanelStore";
 import { RightPanelPhases } from "../../../stores/right-panel/RightPanelStorePhases";
 import { UPDATE_EVENT } from "../../../stores/AsyncStore";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import SettingsStore from "../../../settings/SettingsStore";
 
 export enum HeaderKind {
@@ -34,8 +34,8 @@ export enum HeaderKind {
 interface IState {
     headerKind: HeaderKind;
     phase: RightPanelPhases | null;
-    threadNotificationColor: NotificationColor;
-    globalNotificationColor: NotificationColor;
+    threadNotificationLevel: NotificationLevel;
+    globalNotificationLevel: NotificationLevel;
     notificationsEnabled?: boolean;
 }
 
@@ -53,8 +53,8 @@ export default abstract class HeaderButtons<P = {}> extends React.Component<IPro
         this.state = {
             headerKind: kind,
             phase: rps.currentCard.phase,
-            threadNotificationColor: NotificationColor.None,
-            globalNotificationColor: NotificationColor.None,
+            threadNotificationLevel: NotificationLevel.None,
+            globalNotificationLevel: NotificationLevel.None,
             notificationsEnabled: SettingsStore.getValue("feature_notifications"),
         };
         this.watcherRef = SettingsStore.watchSetting("feature_notifications", null, (...[, , , value]) =>
diff --git a/src/components/views/right_panel/LegacyRoomHeaderButtons.tsx b/src/components/views/right_panel/LegacyRoomHeaderButtons.tsx
index b5117d7dec1..672a2886564 100644
--- a/src/components/views/right_panel/LegacyRoomHeaderButtons.tsx
+++ b/src/components/views/right_panel/LegacyRoomHeaderButtons.tsx
@@ -35,7 +35,7 @@ import {
     RoomNotificationStateStore,
     UPDATE_STATUS_INDICATOR,
 } from "../../../stores/notifications/RoomNotificationStateStore";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import { SummarizedNotificationState } from "../../../stores/notifications/SummarizedNotificationState";
 import PosthogTrackers from "../../../PosthogTrackers";
 import { ButtonEvent } from "../elements/AccessibleButton";
@@ -52,20 +52,20 @@ const ROOM_INFO_PHASES = [
 ];
 
 interface IUnreadIndicatorProps {
-    color?: NotificationColor;
+    color?: NotificationLevel;
 }
 
 const UnreadIndicator: React.FC<IUnreadIndicatorProps> = ({ color }) => {
-    if (color === NotificationColor.None) {
+    if (color === NotificationLevel.None) {
         return null;
     }
 
     const classes = classNames({
         mx_Indicator: true,
         mx_LegacyRoomHeader_button_unreadIndicator: true,
-        mx_Indicator_bold: color === NotificationColor.Bold,
-        mx_Indicator_gray: color === NotificationColor.Grey,
-        mx_Indicator_red: color === NotificationColor.Red,
+        mx_Indicator_activity: color === NotificationLevel.Activity,
+        mx_Indicator_notification: color === NotificationLevel.Notification,
+        mx_Indicator_highlight: color === NotificationLevel.Highlight,
     });
     return (
         <>
@@ -106,11 +106,11 @@ const PinnedMessagesHeaderButton: React.FC<IHeaderButtonProps> = ({ room, isHigh
 
 const TimelineCardHeaderButton: React.FC<IHeaderButtonProps> = ({ room, isHighlighted, onClick }) => {
     let unreadIndicator;
-    const color = RoomNotificationStateStore.instance.getRoomState(room).color;
+    const color = RoomNotificationStateStore.instance.getRoomState(room).level;
     switch (color) {
-        case NotificationColor.Bold:
-        case NotificationColor.Grey:
-        case NotificationColor.Red:
+        case NotificationLevel.Activity:
+        case NotificationLevel.Notification:
+        case NotificationLevel.Highlight:
             unreadIndicator = <UnreadIndicator color={color} />;
     }
     return (
@@ -174,36 +174,36 @@ export default class LegacyRoomHeaderButtons extends HeaderButtons<IProps> {
 
     private onNotificationUpdate = (): void => {
         // console.log
-        // XXX: why don't we read from this.state.threadNotificationColor in the render methods?
+        // XXX: why don't we read from this.state.threadNotificationLevel in the render methods?
         this.setState({
-            threadNotificationColor: this.notificationColor,
+            threadNotificationLevel: this.notificationLevel,
         });
     };
 
-    private get notificationColor(): NotificationColor {
+    private get notificationLevel(): NotificationLevel {
         switch (this.props.room?.threadsAggregateNotificationType) {
             case NotificationCountType.Highlight:
-                return NotificationColor.Red;
+                return NotificationLevel.Highlight;
             case NotificationCountType.Total:
-                return NotificationColor.Grey;
+                return NotificationLevel.Notification;
         }
         // We don't have any notified messages, but we might have unread messages. Let's
         // find out.
         for (const thread of this.props.room!.getThreads()) {
             // If the current thread has unread messages, we're done.
             if (doesRoomOrThreadHaveUnreadMessages(thread)) {
-                return NotificationColor.Bold;
+                return NotificationLevel.Activity;
             }
         }
         // Otherwise, no notification color.
-        return NotificationColor.None;
+        return NotificationLevel.None;
     }
 
     private onUpdateStatus = (notificationState: SummarizedNotificationState): void => {
         // XXX: why don't we read from this.state.globalNotificationCount in the render methods?
         this.globalNotificationState = notificationState;
         this.setState({
-            globalNotificationColor: notificationState.color,
+            globalNotificationLevel: notificationState.level,
         });
     };
 
@@ -282,9 +282,9 @@ export default class LegacyRoomHeaderButtons extends HeaderButtons<IProps> {
                 title={_t("common|threads")}
                 onClick={this.onThreadsPanelClicked}
                 isHighlighted={this.isPhase(LegacyRoomHeaderButtons.THREAD_PHASES)}
-                isUnread={this.state.threadNotificationColor > NotificationColor.None}
+                isUnread={this.state.threadNotificationLevel > NotificationLevel.None}
             >
-                <UnreadIndicator color={this.state.threadNotificationColor} />
+                <UnreadIndicator color={this.state.threadNotificationLevel} />
             </HeaderButton>,
         );
         if (this.state.notificationsEnabled) {
@@ -296,10 +296,10 @@ export default class LegacyRoomHeaderButtons extends HeaderButtons<IProps> {
                     title={_t("notifications|enable_prompt_toast_title")}
                     isHighlighted={this.isPhase(RightPanelPhases.NotificationPanel)}
                     onClick={this.onNotificationsClicked}
-                    isUnread={this.globalNotificationState.color === NotificationColor.Red}
+                    isUnread={this.globalNotificationState.level === NotificationLevel.Highlight}
                 >
-                    {this.globalNotificationState.color === NotificationColor.Red ? (
-                        <UnreadIndicator color={this.globalNotificationState.color} />
+                    {this.globalNotificationState.level === NotificationLevel.Highlight ? (
+                        <UnreadIndicator color={this.globalNotificationState.level} />
                     ) : null}
                 </HeaderButton>,
             );
diff --git a/src/components/views/rooms/NotificationBadge.tsx b/src/components/views/rooms/NotificationBadge.tsx
index a8a34c17d4b..d152ab6a626 100644
--- a/src/components/views/rooms/NotificationBadge.tsx
+++ b/src/components/views/rooms/NotificationBadge.tsx
@@ -21,7 +21,7 @@ import SettingsStore from "../../../settings/SettingsStore";
 import { XOR } from "../../../@types/common";
 import { NotificationState, NotificationStateEvents } from "../../../stores/notifications/NotificationState";
 import { _t } from "../../../languageHandler";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import { StatelessNotificationBadge } from "./NotificationBadge/StatelessNotificationBadge";
 
 interface IProps {
@@ -107,7 +107,7 @@ export default class NotificationBadge extends React.PureComponent<XOR<IProps, I
         const commonProps: React.ComponentProps<typeof StatelessNotificationBadge> = {
             symbol: notification.symbol,
             count: notification.count,
-            color: notification.color,
+            level: notification.level,
             knocked: notification.knocked,
         };
 
@@ -118,7 +118,7 @@ export default class NotificationBadge extends React.PureComponent<XOR<IProps, I
             badge = <StatelessNotificationBadge {...commonProps} />;
         }
 
-        if (showUnsentTooltip && notification.color === NotificationColor.Unsent) {
+        if (showUnsentTooltip && notification.level === NotificationLevel.Unsent) {
             return (
                 <Tooltip label={_t("notifications|message_didnt_send")} side="right">
                     {badge}
diff --git a/src/components/views/rooms/NotificationBadge/StatelessNotificationBadge.tsx b/src/components/views/rooms/NotificationBadge/StatelessNotificationBadge.tsx
index 76f1d8e8389..95f71cc085e 100644
--- a/src/components/views/rooms/NotificationBadge/StatelessNotificationBadge.tsx
+++ b/src/components/views/rooms/NotificationBadge/StatelessNotificationBadge.tsx
@@ -19,14 +19,14 @@ import classNames from "classnames";
 
 import { formatCount } from "../../../../utils/FormattingUtils";
 import AccessibleButton, { ButtonEvent } from "../../elements/AccessibleButton";
-import { NotificationColor } from "../../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../stores/notifications/NotificationLevel";
 import { useSettingValue } from "../../../../hooks/useSettings";
 import { XOR } from "../../../../@types/common";
 
 interface Props {
     symbol: string | null;
     count: number;
-    color: NotificationColor;
+    level: NotificationLevel;
     knocked?: boolean;
 }
 
@@ -39,15 +39,15 @@ interface ClickableProps extends Props {
 }
 
 export const StatelessNotificationBadge = forwardRef<HTMLDivElement, XOR<Props, ClickableProps>>(
-    ({ symbol, count, color, knocked, ...props }, ref) => {
+    ({ symbol, count, level, knocked, ...props }, ref) => {
         const hideBold = useSettingValue("feature_hidebold");
 
         // Don't show a badge if we don't need to
-        if ((color === NotificationColor.None || (hideBold && color == NotificationColor.Bold)) && !knocked) {
+        if ((level === NotificationLevel.None || (hideBold && level == NotificationLevel.Activity)) && !knocked) {
             return <></>;
         }
 
-        const hasUnreadCount = color >= NotificationColor.Grey && (!!count || !!symbol);
+        const hasUnreadCount = level >= NotificationLevel.Notification && (!!count || !!symbol);
 
         const isEmptyBadge = symbol === null && count === 0;
 
@@ -58,7 +58,7 @@ export const StatelessNotificationBadge = forwardRef<HTMLDivElement, XOR<Props,
         const classes = classNames({
             mx_NotificationBadge: true,
             mx_NotificationBadge_visible: isEmptyBadge || knocked ? true : hasUnreadCount,
-            mx_NotificationBadge_highlighted: color >= NotificationColor.Red,
+            mx_NotificationBadge_highlighted: level >= NotificationLevel.Highlight,
             mx_NotificationBadge_dot: isEmptyBadge && !knocked,
             mx_NotificationBadge_knocked: knocked,
             mx_NotificationBadge_2char: symbol && symbol.length > 0 && symbol.length < 3,
diff --git a/src/components/views/rooms/NotificationBadge/UnreadNotificationBadge.tsx b/src/components/views/rooms/NotificationBadge/UnreadNotificationBadge.tsx
index a937c181cc7..4708c33b95a 100644
--- a/src/components/views/rooms/NotificationBadge/UnreadNotificationBadge.tsx
+++ b/src/components/views/rooms/NotificationBadge/UnreadNotificationBadge.tsx
@@ -26,7 +26,7 @@ interface Props {
 }
 
 export function UnreadNotificationBadge({ room, threadId }: Props): JSX.Element {
-    const { symbol, count, color } = useUnreadNotifications(room, threadId);
+    const { symbol, count, level } = useUnreadNotifications(room, threadId);
 
-    return <StatelessNotificationBadge symbol={symbol} count={count} color={color} />;
+    return <StatelessNotificationBadge symbol={symbol} count={count} level={level} />;
 }
diff --git a/src/components/views/rooms/RoomHeader.tsx b/src/components/views/rooms/RoomHeader.tsx
index f770856203f..ec95e2a15c8 100644
--- a/src/components/views/rooms/RoomHeader.tsx
+++ b/src/components/views/rooms/RoomHeader.tsx
@@ -37,7 +37,7 @@ import { Flex } from "../../utils/Flex";
 import { Box } from "../../utils/Box";
 import { useRoomCall } from "../../../hooks/room/useRoomCall";
 import { useRoomThreadNotifications } from "../../../hooks/room/useRoomThreadNotifications";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import { useGlobalNotificationState } from "../../../hooks/useGlobalNotificationState";
 import SdkConfig from "../../../SdkConfig";
 import { useFeatureEnabled } from "../../../hooks/useSettings";
@@ -57,10 +57,10 @@ import { RoomKnocksBar } from "./RoomKnocksBar";
  * A helper to transform a notification color to the what the Compound Icon Button
  * expects
  */
-function notificationColorToIndicator(color: NotificationColor): React.ComponentProps<typeof IconButton>["indicator"] {
-    if (color <= NotificationColor.None) {
+function notificationLevelToIndicator(color: NotificationLevel): React.ComponentProps<typeof IconButton>["indicator"] {
+    if (color <= NotificationLevel.None) {
         return undefined;
-    } else if (color <= NotificationColor.Grey) {
+    } else if (color <= NotificationLevel.Notification) {
         return "default";
     } else {
         return "highlight";
@@ -230,7 +230,7 @@ export default function RoomHeader({
 
                     <Tooltip label={_t("common|threads")}>
                         <IconButton
-                            indicator={notificationColorToIndicator(threadNotifications)}
+                            indicator={notificationLevelToIndicator(threadNotifications)}
                             onClick={(evt) => {
                                 evt.stopPropagation();
                                 RightPanelStore.instance.showOrHidePanel(RightPanelPhases.ThreadPanel);
@@ -244,7 +244,7 @@ export default function RoomHeader({
                     {notificationsEnabled && (
                         <Tooltip label={_t("notifications|enable_prompt_toast_title")}>
                             <IconButton
-                                indicator={notificationColorToIndicator(globalNotificationState.color)}
+                                indicator={notificationLevelToIndicator(globalNotificationState.level)}
                                 onClick={(evt) => {
                                     evt.stopPropagation();
                                     RightPanelStore.instance.showOrHidePanel(RightPanelPhases.NotificationPanel);
diff --git a/src/components/views/rooms/RoomHeader/VideoRoomChatButton.tsx b/src/components/views/rooms/RoomHeader/VideoRoomChatButton.tsx
index ef8766a2b6b..de03ab88f27 100644
--- a/src/components/views/rooms/RoomHeader/VideoRoomChatButton.tsx
+++ b/src/components/views/rooms/RoomHeader/VideoRoomChatButton.tsx
@@ -23,7 +23,7 @@ import { isVideoRoom as calcIsVideoRoom } from "../../../../utils/video-rooms";
 import { _t } from "../../../../languageHandler";
 import { useEventEmitterState } from "../../../../hooks/useEventEmitter";
 import { NotificationStateEvents } from "../../../../stores/notifications/NotificationState";
-import { NotificationColor } from "../../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../stores/notifications/NotificationLevel";
 import { RightPanelPhases } from "../../../../stores/right-panel/RightPanelStorePhases";
 import { SDKContext } from "../../../../contexts/SDKContext";
 import { ButtonEvent } from "../../elements/AccessibleButton";
@@ -43,7 +43,7 @@ export const VideoRoomChatButton: React.FC<{ room: Room }> = ({ room }) => {
     const notificationColor = useEventEmitterState(
         notificationState,
         NotificationStateEvents.Update,
-        () => notificationState?.color,
+        () => notificationState?.level,
     );
 
     if (!isVideoRoom) {
@@ -52,7 +52,9 @@ export const VideoRoomChatButton: React.FC<{ room: Room }> = ({ room }) => {
 
     const displayUnreadIndicator =
         !!notificationColor &&
-        [NotificationColor.Bold, NotificationColor.Grey, NotificationColor.Red].includes(notificationColor);
+        [NotificationLevel.Activity, NotificationLevel.Notification, NotificationLevel.Highlight].includes(
+            notificationColor,
+        );
 
     const onClick = (event: ButtonEvent): void => {
         // stop event propagating up and triggering RoomHeader bar click
diff --git a/src/components/views/rooms/RoomSublist.tsx b/src/components/views/rooms/RoomSublist.tsx
index 6192f966e34..4e84bee0be2 100644
--- a/src/components/views/rooms/RoomSublist.tsx
+++ b/src/components/views/rooms/RoomSublist.tsx
@@ -421,7 +421,7 @@ export default class RoomSublist extends React.Component<IProps, IState> {
             // find the first room with a count of the same colour as the badge count
             room = RoomListStore.instance.orderedLists[this.props.tagId].find((r: Room) => {
                 const notifState = this.notificationState.getForRoom(r);
-                return notifState.count > 0 && notifState.color === this.notificationState.color;
+                return notifState.count > 0 && notifState.level === this.notificationState.level;
             });
         }
 
diff --git a/src/components/views/rooms/VoiceRecordComposerTile.tsx b/src/components/views/rooms/VoiceRecordComposerTile.tsx
index 5cc469a2958..70cabb474c9 100644
--- a/src/components/views/rooms/VoiceRecordComposerTile.tsx
+++ b/src/components/views/rooms/VoiceRecordComposerTile.tsx
@@ -33,7 +33,7 @@ import ErrorDialog from "../dialogs/ErrorDialog";
 import MediaDeviceHandler, { MediaDeviceKindEnum } from "../../../MediaDeviceHandler";
 import NotificationBadge from "./NotificationBadge";
 import { StaticNotificationState } from "../../../stores/notifications/StaticNotificationState";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import InlineSpinner from "../elements/InlineSpinner";
 import { PlaybackManager } from "../../../audio/PlaybackManager";
 import { doMaybeLocalRoomAction } from "../../../utils/local-room";
@@ -305,7 +305,7 @@ export default class VoiceRecordComposerTile extends React.PureComponent<IProps,
                     <span className="mx_VoiceRecordComposerTile_uploadState_badge">
                         {/* Need to stick the badge in a span to ensure it doesn't create a block component */}
                         <NotificationBadge
-                            notification={StaticNotificationState.forSymbol("!", NotificationColor.Red)}
+                            notification={StaticNotificationState.forSymbol("!", NotificationLevel.Highlight)}
                         />
                     </span>
                     <span className="text-warning">{_t("timeline|send_state_failed")}</span>
diff --git a/src/components/views/settings/notifications/NotificationSettings2.tsx b/src/components/views/settings/notifications/NotificationSettings2.tsx
index 752532ebd20..bdc021e486e 100644
--- a/src/components/views/settings/notifications/NotificationSettings2.tsx
+++ b/src/components/views/settings/notifications/NotificationSettings2.tsx
@@ -28,7 +28,7 @@ import {
 import { RoomNotifState } from "../../../../RoomNotifs";
 import { SettingLevel } from "../../../../settings/SettingLevel";
 import SettingsStore from "../../../../settings/SettingsStore";
-import { NotificationColor } from "../../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../stores/notifications/NotificationLevel";
 import { clearAllNotifications } from "../../../../utils/notifications";
 import AccessibleButton from "../../elements/AccessibleButton";
 import ExternalLink from "../../elements/ExternalLink";
@@ -278,7 +278,13 @@ export default function NotificationSettings2(): JSX.Element {
                         "settings|notifications|keywords",
                         {},
                         {
-                            badge: <StatelessNotificationBadge symbol="1" count={1} color={NotificationColor.Grey} />,
+                            badge: (
+                                <StatelessNotificationBadge
+                                    symbol="1"
+                                    count={1}
+                                    level={NotificationLevel.Notification}
+                                />
+                            ),
                         },
                     )}
                 >
diff --git a/src/components/views/spaces/SpaceTreeLevel.tsx b/src/components/views/spaces/SpaceTreeLevel.tsx
index 401f9c2778f..c0b71709238 100644
--- a/src/components/views/spaces/SpaceTreeLevel.tsx
+++ b/src/components/views/spaces/SpaceTreeLevel.tsx
@@ -40,7 +40,7 @@ import { toRightOf, useContextMenu } from "../../structures/ContextMenu";
 import MatrixClientContext from "../../../contexts/MatrixClientContext";
 import AccessibleButton, { ButtonEvent } from "../elements/AccessibleButton";
 import { StaticNotificationState } from "../../../stores/notifications/StaticNotificationState";
-import { NotificationColor } from "../../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../stores/notifications/NotificationLevel";
 import { getKeyBindingsManager } from "../../../KeyBindingsManager";
 import { NotificationState } from "../../../stores/notifications/NotificationState";
 import SpaceContextMenu from "../context_menus/SpaceContextMenu";
@@ -329,7 +329,7 @@ export class SpaceItem extends React.PureComponent<IItemProps, IItemState> {
         const isInvite = space.getMyMembership() === "invite";
 
         const notificationState = isInvite
-            ? StaticNotificationState.forSymbol("!", NotificationColor.Red)
+            ? StaticNotificationState.forSymbol("!", NotificationLevel.Highlight)
             : SpaceStore.instance.getNotificationState(space.roomId);
 
         const hasChildren = this.state.childSpaces?.length;
diff --git a/src/hooks/room/useRoomThreadNotifications.ts b/src/hooks/room/useRoomThreadNotifications.ts
index 10dcdad5138..93c3b8eed0e 100644
--- a/src/hooks/room/useRoomThreadNotifications.ts
+++ b/src/hooks/room/useRoomThreadNotifications.ts
@@ -17,7 +17,7 @@ limitations under the License.
 import { NotificationCountType, Room, RoomEvent, ThreadEvent } from "matrix-js-sdk/src/matrix";
 import { useCallback, useEffect, useState } from "react";
 
-import { NotificationColor } from "../../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../stores/notifications/NotificationLevel";
 import { doesRoomOrThreadHaveUnreadMessages } from "../../Unread";
 import { useEventEmitter } from "../useEventEmitter";
 
@@ -26,16 +26,16 @@ import { useEventEmitter } from "../useEventEmitter";
  * @param room the room to track
  * @returns the type of notification for this room
  */
-export const useRoomThreadNotifications = (room: Room): NotificationColor => {
-    const [notificationColor, setNotificationColor] = useState(NotificationColor.None);
+export const useRoomThreadNotifications = (room: Room): NotificationLevel => {
+    const [notificationLevel, setNotificationLevel] = useState(NotificationLevel.None);
 
     const updateNotification = useCallback(() => {
         switch (room?.threadsAggregateNotificationType) {
             case NotificationCountType.Highlight:
-                setNotificationColor(NotificationColor.Red);
+                setNotificationLevel(NotificationLevel.Highlight);
                 break;
             case NotificationCountType.Total:
-                setNotificationColor(NotificationColor.Grey);
+                setNotificationLevel(NotificationLevel.Notification);
                 break;
         }
         // We don't have any notified messages, but we might have unread messages. Let's
@@ -43,7 +43,7 @@ export const useRoomThreadNotifications = (room: Room): NotificationColor => {
         for (const thread of room!.getThreads()) {
             // If the current thread has unread messages, we're done.
             if (doesRoomOrThreadHaveUnreadMessages(thread)) {
-                setNotificationColor(NotificationColor.Bold);
+                setNotificationLevel(NotificationLevel.Activity);
                 break;
             }
         }
@@ -63,5 +63,5 @@ export const useRoomThreadNotifications = (room: Room): NotificationColor => {
         updateNotification();
     }, [updateNotification]);
 
-    return notificationColor;
+    return notificationLevel;
 };
diff --git a/src/hooks/useUnreadNotifications.ts b/src/hooks/useUnreadNotifications.ts
index 791c1c4bc96..fd4bab9edfe 100644
--- a/src/hooks/useUnreadNotifications.ts
+++ b/src/hooks/useUnreadNotifications.ts
@@ -19,7 +19,7 @@ import { useCallback, useEffect, useState } from "react";
 
 import type { NotificationCount, Room } from "matrix-js-sdk/src/matrix";
 import { determineUnreadState } from "../RoomNotifs";
-import { NotificationColor } from "../stores/notifications/NotificationColor";
+import { NotificationLevel } from "../stores/notifications/NotificationLevel";
 import { useEventEmitter } from "./useEventEmitter";
 
 export const useUnreadNotifications = (
@@ -28,11 +28,11 @@ export const useUnreadNotifications = (
 ): {
     symbol: string | null;
     count: number;
-    color: NotificationColor;
+    level: NotificationLevel;
 } => {
     const [symbol, setSymbol] = useState<string | null>(null);
     const [count, setCount] = useState<number>(0);
-    const [color, setColor] = useState<NotificationColor>(NotificationColor.None);
+    const [level, setLevel] = useState<NotificationLevel>(NotificationLevel.None);
 
     useEventEmitter(
         room,
@@ -50,10 +50,10 @@ export const useUnreadNotifications = (
     useEventEmitter(room, RoomEvent.MyMembership, () => updateNotificationState());
 
     const updateNotificationState = useCallback(() => {
-        const { symbol, count, color } = determineUnreadState(room, threadId);
+        const { symbol, count, level } = determineUnreadState(room, threadId);
         setSymbol(symbol);
         setCount(count);
-        setColor(color);
+        setLevel(level);
     }, [room, threadId]);
 
     useEffect(() => {
@@ -63,6 +63,6 @@ export const useUnreadNotifications = (
     return {
         symbol,
         count,
-        color,
+        level,
     };
 };
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index cc1cd4d79bb..40310cc8ac8 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -1603,12 +1603,6 @@
         "all_messages_description": "Get notified for every message",
         "class_global": "Global",
         "class_other": "Other",
-        "colour_bold": "Bold",
-        "colour_grey": "Grey",
-        "colour_muted": "Muted",
-        "colour_none": "None",
-        "colour_red": "Red",
-        "colour_unsent": "Unsent",
         "default": "Default",
         "email_pusher_app_display_name": "Email Notifications",
         "enable_prompt_toast_description": "Enable desktop notifications",
@@ -1617,6 +1611,12 @@
         "error_change_title": "Change notification settings",
         "keyword": "Keyword",
         "keyword_new": "New keyword",
+        "level_activity": "Activity",
+        "level_highlight": "Highlight",
+        "level_muted": "Muted",
+        "level_none": "None",
+        "level_notification": "Notification",
+        "level_unsent": "Unsent",
         "mark_all_read": "Mark all as read",
         "mentions_and_keywords": "@mentions & keywords",
         "mentions_and_keywords_description": "Get notified only with mentions and keywords as set up in your <a>settings</a>",
diff --git a/src/stores/notifications/ListNotificationState.ts b/src/stores/notifications/ListNotificationState.ts
index 7d246786201..04dbf6ed8df 100644
--- a/src/stores/notifications/ListNotificationState.ts
+++ b/src/stores/notifications/ListNotificationState.ts
@@ -16,7 +16,7 @@ limitations under the License.
 
 import { Room } from "matrix-js-sdk/src/matrix";
 
-import { NotificationColor } from "./NotificationColor";
+import { NotificationLevel } from "./NotificationLevel";
 import { arrayDiff } from "../../utils/arrays";
 import { RoomNotificationState } from "./RoomNotificationState";
 import { NotificationState, NotificationStateEvents } from "./NotificationState";
@@ -35,7 +35,7 @@ export class ListNotificationState extends NotificationState {
     }
 
     public get symbol(): string | null {
-        return this._color === NotificationColor.Unsent ? "!" : null;
+        return this._level === NotificationLevel.Unsent ? "!" : null;
     }
 
     public setRooms(rooms: Room[]): void {
@@ -86,14 +86,14 @@ export class ListNotificationState extends NotificationState {
         const snapshot = this.snapshot();
 
         if (this.byTileCount) {
-            this._color = NotificationColor.Red;
+            this._level = NotificationLevel.Highlight;
             this._count = this.rooms.length;
         } else {
             this._count = 0;
-            this._color = NotificationColor.None;
+            this._level = NotificationLevel.None;
             for (const state of Object.values(this.states)) {
                 this._count += state.count;
-                this._color = Math.max(this.color, state.color);
+                this._level = Math.max(this.level, state.level);
             }
         }
 
diff --git a/src/stores/notifications/NotificationColor.ts b/src/stores/notifications/NotificationLevel.ts
similarity index 51%
rename from src/stores/notifications/NotificationColor.ts
rename to src/stores/notifications/NotificationLevel.ts
index f43bf27ccf8..1d1e5843bf3 100644
--- a/src/stores/notifications/NotificationColor.ts
+++ b/src/stores/notifications/NotificationLevel.ts
@@ -16,30 +16,30 @@ limitations under the License.
 
 import { _t } from "../../languageHandler";
 
-export enum NotificationColor {
+export enum NotificationLevel {
     Muted,
     // Inverted (None -> Red) because we do integer comparisons on this
     None, // nothing special
     // TODO: Remove bold with notifications: https://github.com/vector-im/element-web/issues/14227
-    Bold, // no badge, show as unread
-    Grey, // unread notified messages
-    Red, // unread pings
+    Activity, // no badge, show as unread
+    Notification, // unread notified messages
+    Highlight, // unread pings
     Unsent, // some messages failed to send
 }
 
-export function humanReadableNotificationColor(color: NotificationColor): string {
-    switch (color) {
-        case NotificationColor.None:
-            return _t("notifications|colour_none");
-        case NotificationColor.Bold:
-            return _t("notifications|colour_bold");
-        case NotificationColor.Grey:
-            return _t("notifications|colour_grey");
-        case NotificationColor.Red:
-            return _t("notifications|colour_red");
-        case NotificationColor.Unsent:
-            return _t("notifications|colour_unsent");
-        case NotificationColor.Muted:
-            return _t("notifications|colour_muted");
+export function humanReadableNotificationLevel(level: NotificationLevel): string {
+    switch (level) {
+        case NotificationLevel.None:
+            return _t("notifications|level_none");
+        case NotificationLevel.Activity:
+            return _t("notifications|level_activity");
+        case NotificationLevel.Notification:
+            return _t("notifications|level_notification");
+        case NotificationLevel.Highlight:
+            return _t("notifications|level_highlight");
+        case NotificationLevel.Unsent:
+            return _t("notifications|level_unsent");
+        case NotificationLevel.Muted:
+            return _t("notifications|level_muted");
     }
 }
diff --git a/src/stores/notifications/NotificationState.ts b/src/stores/notifications/NotificationState.ts
index 6de2d6b853d..79c0409e3e5 100644
--- a/src/stores/notifications/NotificationState.ts
+++ b/src/stores/notifications/NotificationState.ts
@@ -16,14 +16,14 @@ limitations under the License.
 
 import { TypedEventEmitter } from "matrix-js-sdk/src/matrix";
 
-import { NotificationColor } from "./NotificationColor";
+import { NotificationLevel } from "./NotificationLevel";
 import { IDestroyable } from "../../utils/IDestroyable";
 import SettingsStore from "../../settings/SettingsStore";
 
 export interface INotificationStateSnapshotParams {
     symbol: string | null;
     count: number;
-    color: NotificationColor;
+    level: NotificationLevel;
     muted: boolean;
     knocked: boolean;
 }
@@ -43,7 +43,7 @@ export abstract class NotificationState
     //
     protected _symbol: string | null = null;
     protected _count = 0;
-    protected _color: NotificationColor = NotificationColor.None;
+    protected _level: NotificationLevel = NotificationLevel.None;
     protected _muted = false;
     protected _knocked = false;
 
@@ -66,8 +66,8 @@ export abstract class NotificationState
         return this._count;
     }
 
-    public get color(): NotificationColor {
-        return this._color;
+    public get level(): NotificationLevel {
+        return this._level;
     }
 
     public get muted(): boolean {
@@ -79,24 +79,24 @@ export abstract class NotificationState
     }
 
     public get isIdle(): boolean {
-        return this.color <= NotificationColor.None;
+        return this.level <= NotificationLevel.None;
     }
 
     public get isUnread(): boolean {
-        if (this.color > NotificationColor.Bold) {
+        if (this.level > NotificationLevel.Activity) {
             return true;
         } else {
             const hideBold = SettingsStore.getValue("feature_hidebold");
-            return this.color === NotificationColor.Bold && !hideBold;
+            return this.level === NotificationLevel.Activity && !hideBold;
         }
     }
 
     public get hasUnreadCount(): boolean {
-        return this.color >= NotificationColor.Grey && (!!this.count || !!this.symbol);
+        return this.level >= NotificationLevel.Notification && (!!this.count || !!this.symbol);
     }
 
     public get hasMentions(): boolean {
-        return this.color >= NotificationColor.Red;
+        return this.level >= NotificationLevel.Highlight;
     }
 
     protected emitIfUpdated(snapshot: NotificationStateSnapshot): void {
@@ -121,14 +121,14 @@ export abstract class NotificationState
 export class NotificationStateSnapshot {
     private readonly symbol: string | null;
     private readonly count: number;
-    private readonly color: NotificationColor;
+    private readonly level: NotificationLevel;
     private readonly muted: boolean;
     private readonly knocked: boolean;
 
     public constructor(state: INotificationStateSnapshotParams) {
         this.symbol = state.symbol;
         this.count = state.count;
-        this.color = state.color;
+        this.level = state.level;
         this.muted = state.muted;
         this.knocked = state.knocked;
     }
@@ -137,14 +137,14 @@ export class NotificationStateSnapshot {
         const before = {
             count: this.count,
             symbol: this.symbol,
-            color: this.color,
+            level: this.level,
             muted: this.muted,
             knocked: this.knocked,
         };
         const after = {
             count: other.count,
             symbol: other.symbol,
-            color: other.color,
+            level: other.level,
             muted: other.muted,
             knocked: other.knocked,
         };
diff --git a/src/stores/notifications/RoomNotificationState.ts b/src/stores/notifications/RoomNotificationState.ts
index 44b4931f909..be5d5918342 100644
--- a/src/stores/notifications/RoomNotificationState.ts
+++ b/src/stores/notifications/RoomNotificationState.ts
@@ -90,11 +90,11 @@ export class RoomNotificationState extends NotificationState implements IDestroy
     private updateNotificationState(): void {
         const snapshot = this.snapshot();
 
-        const { color, symbol, count } = RoomNotifs.determineUnreadState(this.room);
+        const { level, symbol, count } = RoomNotifs.determineUnreadState(this.room);
         const muted =
             RoomNotifs.getRoomNotifsState(this.room.client, this.room.roomId) === RoomNotifs.RoomNotifState.Mute;
         const knocked = SettingsStore.getValue("feature_ask_to_join") && this.room.getMyMembership() === "knock";
-        this._color = color;
+        this._level = level;
         this._symbol = symbol;
         this._count = count;
         this._muted = muted;
diff --git a/src/stores/notifications/RoomNotificationStateStore.ts b/src/stores/notifications/RoomNotificationStateStore.ts
index ce9b89871ca..5c8161a3383 100644
--- a/src/stores/notifications/RoomNotificationStateStore.ts
+++ b/src/stores/notifications/RoomNotificationStateStore.ts
@@ -138,7 +138,7 @@ export class RoomNotificationStateStore extends AsyncStoreWithClient<IState> {
         if (
             this.globalState.symbol !== globalState.symbol ||
             this.globalState.count !== globalState.count ||
-            this.globalState.color !== globalState.color ||
+            this.globalState.level !== globalState.level ||
             this.globalState.numUnreadStates !== globalState.numUnreadStates ||
             forceEmit
         ) {
diff --git a/src/stores/notifications/SpaceNotificationState.ts b/src/stores/notifications/SpaceNotificationState.ts
index 7c9bfa2e96c..e5054bf5944 100644
--- a/src/stores/notifications/SpaceNotificationState.ts
+++ b/src/stores/notifications/SpaceNotificationState.ts
@@ -16,7 +16,7 @@ limitations under the License.
 
 import { Room } from "matrix-js-sdk/src/matrix";
 
-import { NotificationColor } from "./NotificationColor";
+import { NotificationLevel } from "./NotificationLevel";
 import { arrayDiff } from "../../utils/arrays";
 import { RoomNotificationState } from "./RoomNotificationState";
 import { NotificationState, NotificationStateEvents } from "./NotificationState";
@@ -33,7 +33,7 @@ export class SpaceNotificationState extends NotificationState {
     }
 
     public get symbol(): string | null {
-        return this._color === NotificationColor.Unsent ? "!" : null;
+        return this._level === NotificationLevel.Unsent ? "!" : null;
     }
 
     public setRooms(rooms: Room[]): void {
@@ -56,7 +56,7 @@ export class SpaceNotificationState extends NotificationState {
     }
 
     public getFirstRoomWithNotifications(): string | undefined {
-        return Object.values(this.states).find((state) => state.color >= this.color)?.room.roomId;
+        return Object.values(this.states).find((state) => state.level >= this.level)?.room.roomId;
     }
 
     public destroy(): void {
@@ -75,16 +75,16 @@ export class SpaceNotificationState extends NotificationState {
         const snapshot = this.snapshot();
 
         this._count = 0;
-        this._color = NotificationColor.None;
+        this._level = NotificationLevel.None;
         for (const [roomId, state] of Object.entries(this.states)) {
             const room = this.rooms.find((r) => r.roomId === roomId);
             const roomTags = room ? RoomListStore.instance.getTagsForRoom(room) : [];
 
             // We ignore unreads in LowPriority rooms, see https://github.com/vector-im/element-web/issues/16836
-            if (roomTags.includes(DefaultTagID.LowPriority) && state.color === NotificationColor.Bold) continue;
+            if (roomTags.includes(DefaultTagID.LowPriority) && state.level === NotificationLevel.Activity) continue;
 
             this._count += state.count;
-            this._color = Math.max(this.color, state.color);
+            this._level = Math.max(this.level, state.level);
         }
 
         // finally, publish an update if needed
diff --git a/src/stores/notifications/StaticNotificationState.ts b/src/stores/notifications/StaticNotificationState.ts
index 2b992213137..7ad33cbd4e4 100644
--- a/src/stores/notifications/StaticNotificationState.ts
+++ b/src/stores/notifications/StaticNotificationState.ts
@@ -14,24 +14,24 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { NotificationColor } from "./NotificationColor";
+import { NotificationLevel } from "./NotificationLevel";
 import { NotificationState } from "./NotificationState";
 
 export class StaticNotificationState extends NotificationState {
-    public static readonly RED_EXCLAMATION = StaticNotificationState.forSymbol("!", NotificationColor.Red);
+    public static readonly RED_EXCLAMATION = StaticNotificationState.forSymbol("!", NotificationLevel.Highlight);
 
-    public constructor(symbol: string | null, count: number, color: NotificationColor) {
+    public constructor(symbol: string | null, count: number, level: NotificationLevel) {
         super();
         this._symbol = symbol;
         this._count = count;
-        this._color = color;
+        this._level = level;
     }
 
-    public static forCount(count: number, color: NotificationColor): StaticNotificationState {
-        return new StaticNotificationState(null, count, color);
+    public static forCount(count: number, level: NotificationLevel): StaticNotificationState {
+        return new StaticNotificationState(null, count, level);
     }
 
-    public static forSymbol(symbol: string, color: NotificationColor): StaticNotificationState {
-        return new StaticNotificationState(symbol, 0, color);
+    public static forSymbol(symbol: string, level: NotificationLevel): StaticNotificationState {
+        return new StaticNotificationState(symbol, 0, level);
     }
 }
diff --git a/src/stores/notifications/SummarizedNotificationState.ts b/src/stores/notifications/SummarizedNotificationState.ts
index 1d459ac2eaf..d0317672826 100644
--- a/src/stores/notifications/SummarizedNotificationState.ts
+++ b/src/stores/notifications/SummarizedNotificationState.ts
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { NotificationColor } from "./NotificationColor";
+import { NotificationLevel } from "./NotificationLevel";
 import { NotificationState } from "./NotificationState";
 
 /**
@@ -30,7 +30,7 @@ export class SummarizedNotificationState extends NotificationState {
         super();
         this._symbol = null;
         this._count = 0;
-        this._color = NotificationColor.None;
+        this._level = NotificationLevel.None;
     }
 
     public get numUnreadStates(): number {
@@ -52,8 +52,8 @@ export class SummarizedNotificationState extends NotificationState {
         if (other.count) {
             this._count += other.count;
         }
-        if (other.color > this.color) {
-            this._color = other.color;
+        if (other.level > this.level) {
+            this._level = other.level;
         }
         if (other.hasUnreadCount) {
             this.totalStatesWithUnread++;
diff --git a/src/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm.ts b/src/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm.ts
index 12548c5d20f..09cb1d16d90 100644
--- a/src/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm.ts
+++ b/src/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm.ts
@@ -22,27 +22,27 @@ import { RoomUpdateCause, TagID } from "../../models";
 import { SortAlgorithm } from "../models";
 import { sortRoomsWithAlgorithm } from "../tag-sorting";
 import { OrderingAlgorithm } from "./OrderingAlgorithm";
-import { NotificationColor } from "../../../notifications/NotificationColor";
+import { NotificationLevel } from "../../../notifications/NotificationLevel";
 import { RoomNotificationStateStore } from "../../../notifications/RoomNotificationStateStore";
 
 type CategorizedRoomMap = {
-    [category in NotificationColor]: Room[];
+    [category in NotificationLevel]: Room[];
 };
 
 type CategoryIndex = Partial<{
-    [category in NotificationColor]: number; // integer
+    [category in NotificationLevel]: number; // integer
 }>;
 
 // Caution: changing this means you'll need to update a bunch of assumptions and
 // comments! Check the usage of Category carefully to figure out what needs changing
 // if you're going to change this array's order.
 const CATEGORY_ORDER = [
-    NotificationColor.Unsent,
-    NotificationColor.Red,
-    NotificationColor.Grey,
-    NotificationColor.Bold,
-    NotificationColor.None, // idle
-    NotificationColor.Muted,
+    NotificationLevel.Unsent,
+    NotificationLevel.Highlight,
+    NotificationLevel.Notification,
+    NotificationLevel.Activity,
+    NotificationLevel.None, // idle
+    NotificationLevel.Muted,
 ];
 
 /**
@@ -77,12 +77,12 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
     // noinspection JSMethodCanBeStatic
     private categorizeRooms(rooms: Room[]): CategorizedRoomMap {
         const map: CategorizedRoomMap = {
-            [NotificationColor.Unsent]: [],
-            [NotificationColor.Red]: [],
-            [NotificationColor.Grey]: [],
-            [NotificationColor.Bold]: [],
-            [NotificationColor.None]: [],
-            [NotificationColor.Muted]: [],
+            [NotificationLevel.Unsent]: [],
+            [NotificationLevel.Highlight]: [],
+            [NotificationLevel.Notification]: [],
+            [NotificationLevel.Activity]: [],
+            [NotificationLevel.None]: [],
+            [NotificationLevel.Muted]: [],
         };
         for (const room of rooms) {
             const category = this.getRoomCategory(room);
@@ -92,11 +92,11 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
     }
 
     // noinspection JSMethodCanBeStatic
-    private getRoomCategory(room: Room): NotificationColor {
+    private getRoomCategory(room: Room): NotificationLevel {
         // It's fine for us to call this a lot because it's cached, and we shouldn't be
         // wasting anything by doing so as the store holds single references
         const state = RoomNotificationStateStore.instance.getRoomState(room);
-        return this.isMutedToBottom && state.muted ? NotificationColor.Muted : state.color;
+        return this.isMutedToBottom && state.muted ? NotificationLevel.Muted : state.level;
     }
 
     public setRooms(rooms: Room[]): void {
@@ -106,7 +106,7 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
             // Every other sorting type affects the categories, not the whole tag.
             const categorized = this.categorizeRooms(rooms);
             for (const category of Object.keys(categorized)) {
-                const notificationColor = category as unknown as NotificationColor;
+                const notificationColor = category as unknown as NotificationLevel;
                 const roomsToOrder = categorized[notificationColor];
                 categorized[notificationColor] = sortRoomsWithAlgorithm(
                     roomsToOrder,
@@ -128,7 +128,7 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
         }
     }
 
-    private getCategoryIndex(category: NotificationColor): number {
+    private getCategoryIndex(category: NotificationLevel): number {
         const categoryIndex = this.indices[category];
 
         if (categoryIndex === undefined) {
@@ -213,7 +213,7 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
         return true; // change made
     }
 
-    private sortCategory(category: NotificationColor): void {
+    private sortCategory(category: NotificationLevel): void {
         // This should be relatively quick because the room is usually inserted at the top of the
         // category, and most popular sorting algorithms will deal with trying to keep the active
         // room at the top/start of the category. For the few algorithms that will have to move the
@@ -231,7 +231,7 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
     }
 
     // noinspection JSMethodCanBeStatic
-    private getCategoryFromIndices(index: number, indices: CategoryIndex): NotificationColor {
+    private getCategoryFromIndices(index: number, indices: CategoryIndex): NotificationLevel {
         for (let i = 0; i < CATEGORY_ORDER.length; i++) {
             const category = CATEGORY_ORDER[i];
             const isLast = i === CATEGORY_ORDER.length - 1;
@@ -252,8 +252,8 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
     // noinspection JSMethodCanBeStatic
     private moveRoomIndexes(
         nRooms: number,
-        fromCategory: NotificationColor,
-        toCategory: NotificationColor,
+        fromCategory: NotificationLevel,
+        toCategory: NotificationLevel,
         indices: CategoryIndex,
     ): void {
         // We have to update the index of the category *after* the from/toCategory variables
@@ -266,7 +266,7 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
         this.alterCategoryPositionBy(toCategory, +nRooms, indices);
     }
 
-    private alterCategoryPositionBy(category: NotificationColor, n: number, indices: CategoryIndex): void {
+    private alterCategoryPositionBy(category: NotificationLevel, n: number, indices: CategoryIndex): void {
         // Note: when we alter a category's index, we actually have to modify the ones following
         // the target and not the target itself.
 
diff --git a/test/RoomNotifs-test.ts b/test/RoomNotifs-test.ts
index 3544e862c24..f558ccc68ae 100644
--- a/test/RoomNotifs-test.ts
+++ b/test/RoomNotifs-test.ts
@@ -34,7 +34,7 @@ import {
     getUnreadNotificationCount,
     determineUnreadState,
 } from "../src/RoomNotifs";
-import { NotificationColor } from "../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../src/stores/notifications/NotificationLevel";
 import SettingsStore from "../src/settings/SettingsStore";
 import { MatrixClientPeg } from "../src/MatrixClientPeg";
 
@@ -252,10 +252,10 @@ describe("RoomNotifs test", () => {
         });
 
         it("shows nothing by default", async () => {
-            const { color, symbol, count } = determineUnreadState(room);
+            const { level, symbol, count } = determineUnreadState(room);
 
             expect(symbol).toBe(null);
-            expect(color).toBe(NotificationColor.None);
+            expect(level).toBe(NotificationLevel.None);
             expect(count).toBe(0);
         });
 
@@ -269,20 +269,20 @@ describe("RoomNotifs test", () => {
             event.status = EventStatus.NOT_SENT;
             room.addPendingEvent(event, "txn");
 
-            const { color, symbol, count } = determineUnreadState(room);
+            const { level, symbol, count } = determineUnreadState(room);
 
             expect(symbol).toBe("!");
-            expect(color).toBe(NotificationColor.Unsent);
+            expect(level).toBe(NotificationLevel.Unsent);
             expect(count).toBeGreaterThan(0);
         });
 
         it("indicates the user has been invited to a channel", async () => {
             room.updateMyMembership("invite");
 
-            const { color, symbol, count } = determineUnreadState(room);
+            const { level, symbol, count } = determineUnreadState(room);
 
             expect(symbol).toBe("!");
-            expect(color).toBe(NotificationColor.Red);
+            expect(level).toBe(NotificationLevel.Highlight);
             expect(count).toBeGreaterThan(0);
         });
 
@@ -294,10 +294,10 @@ describe("RoomNotifs test", () => {
                 membership: "knock",
             });
             jest.spyOn(room, "getMember").mockReturnValue(roomMember);
-            const { color, symbol, count } = determineUnreadState(room);
+            const { level, symbol, count } = determineUnreadState(room);
 
             expect(symbol).toBe("!");
-            expect(color).toBe(NotificationColor.Red);
+            expect(level).toBe(NotificationLevel.Highlight);
             expect(count).toBeGreaterThan(0);
         });
 
@@ -306,27 +306,27 @@ describe("RoomNotifs test", () => {
             room.setUnreadNotificationCount(NotificationCountType.Total, 99);
             muteRoom(room);
 
-            const { color, count } = determineUnreadState(room);
+            const { level, count } = determineUnreadState(room);
 
-            expect(color).toBe(NotificationColor.None);
+            expect(level).toBe(NotificationLevel.None);
             expect(count).toBe(0);
         });
 
         it("uses the correct number of unreads", async () => {
             room.setUnreadNotificationCount(NotificationCountType.Total, 999);
 
-            const { color, count } = determineUnreadState(room);
+            const { level, count } = determineUnreadState(room);
 
-            expect(color).toBe(NotificationColor.Grey);
+            expect(level).toBe(NotificationLevel.Notification);
             expect(count).toBe(999);
         });
 
         it("uses the correct number of highlights", async () => {
             room.setUnreadNotificationCount(NotificationCountType.Highlight, 888);
 
-            const { color, count } = determineUnreadState(room);
+            const { level, count } = determineUnreadState(room);
 
-            expect(color).toBe(NotificationColor.Red);
+            expect(level).toBe(NotificationLevel.Highlight);
             expect(count).toBe(888);
         });
     });
diff --git a/test/components/views/right_panel/LegacyRoomHeaderButtons-test.tsx b/test/components/views/right_panel/LegacyRoomHeaderButtons-test.tsx
index ab02e6b9c4e..ef429562177 100644
--- a/test/components/views/right_panel/LegacyRoomHeaderButtons-test.tsx
+++ b/test/components/views/right_panel/LegacyRoomHeaderButtons-test.tsx
@@ -56,7 +56,7 @@ describe("LegacyRoomHeaderButtons-test.tsx", function () {
         return container.querySelector(".mx_RightPanel_threadsButton");
     }
 
-    function isIndicatorOfType(container: HTMLElement, type: "red" | "gray" | "bold") {
+    function isIndicatorOfType(container: HTMLElement, type: "highlight" | "notification" | "activity") {
         return container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")!.className.includes(type);
     }
 
@@ -85,10 +85,10 @@ describe("LegacyRoomHeaderButtons-test.tsx", function () {
 
         room.setThreadUnreadNotificationCount("$123", NotificationCountType.Total, 1);
         expect(getThreadButton(container)!.className.includes("mx_LegacyRoomHeader_button--unread")).toBeTruthy();
-        expect(isIndicatorOfType(container, "gray")).toBe(true);
+        expect(isIndicatorOfType(container, "notification")).toBe(true);
 
         room.setThreadUnreadNotificationCount("$123", NotificationCountType.Highlight, 1);
-        expect(isIndicatorOfType(container, "red")).toBe(true);
+        expect(isIndicatorOfType(container, "highlight")).toBe(true);
 
         room.setThreadUnreadNotificationCount("$123", NotificationCountType.Total, 0);
         room.setThreadUnreadNotificationCount("$123", NotificationCountType.Highlight, 0);
@@ -122,7 +122,7 @@ describe("LegacyRoomHeaderButtons-test.tsx", function () {
             },
         });
         room.addReceipt(receipt);
-        expect(isIndicatorOfType(container, "bold")).toBe(true);
+        expect(isIndicatorOfType(container, "activity")).toBe(true);
 
         // Sending the last event should clear the notification.
         let event = mkEvent({
@@ -158,7 +158,7 @@ describe("LegacyRoomHeaderButtons-test.tsx", function () {
             },
         });
         room.addLiveEvents([event]);
-        expect(isIndicatorOfType(container, "bold")).toBe(true);
+        expect(isIndicatorOfType(container, "activity")).toBe(true);
 
         // Sending a read receipt on an earlier event shouldn't do anything.
         receipt = new MatrixEvent({
@@ -173,7 +173,7 @@ describe("LegacyRoomHeaderButtons-test.tsx", function () {
             },
         });
         room.addReceipt(receipt);
-        expect(isIndicatorOfType(container, "bold")).toBe(true);
+        expect(isIndicatorOfType(container, "activity")).toBe(true);
 
         // Sending a receipt on the latest event should clear the notification.
         receipt = new MatrixEvent({
diff --git a/test/components/views/rooms/NotificationBadge/NotificationBadge-test.tsx b/test/components/views/rooms/NotificationBadge/NotificationBadge-test.tsx
index e0aa0d89bdf..79cd3fcae03 100644
--- a/test/components/views/rooms/NotificationBadge/NotificationBadge-test.tsx
+++ b/test/components/views/rooms/NotificationBadge/NotificationBadge-test.tsx
@@ -19,7 +19,7 @@ import React from "react";
 
 import { StatelessNotificationBadge } from "../../../../../src/components/views/rooms/NotificationBadge/StatelessNotificationBadge";
 import SettingsStore from "../../../../../src/settings/SettingsStore";
-import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../../src/stores/notifications/NotificationLevel";
 
 describe("NotificationBadge", () => {
     describe("StatelessNotificationBadge", () => {
@@ -27,7 +27,7 @@ describe("NotificationBadge", () => {
             const cb = jest.fn();
 
             const { getByRole } = render(
-                <StatelessNotificationBadge symbol="" color={NotificationColor.Red} count={5} onClick={cb} />,
+                <StatelessNotificationBadge symbol="" level={NotificationLevel.Highlight} count={5} onClick={cb} />,
             );
 
             fireEvent.click(getByRole("button")!);
@@ -40,7 +40,7 @@ describe("NotificationBadge", () => {
             });
 
             const { container } = render(
-                <StatelessNotificationBadge symbol="" color={NotificationColor.Bold} count={1} />,
+                <StatelessNotificationBadge symbol="" level={NotificationLevel.Activity} count={1} />,
             );
 
             expect(container.firstChild).toBeNull();
diff --git a/test/components/views/rooms/NotificationBadge/StatelessNotificationBadge-test.tsx b/test/components/views/rooms/NotificationBadge/StatelessNotificationBadge-test.tsx
index c6d2b843e6e..a6f1cd66be1 100644
--- a/test/components/views/rooms/NotificationBadge/StatelessNotificationBadge-test.tsx
+++ b/test/components/views/rooms/NotificationBadge/StatelessNotificationBadge-test.tsx
@@ -18,19 +18,19 @@ import React from "react";
 import { render } from "@testing-library/react";
 
 import { StatelessNotificationBadge } from "../../../../../src/components/views/rooms/NotificationBadge/StatelessNotificationBadge";
-import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../../src/stores/notifications/NotificationLevel";
 
 describe("StatelessNotificationBadge", () => {
     it("is highlighted when unsent", () => {
         const { container } = render(
-            <StatelessNotificationBadge symbol="!" count={0} color={NotificationColor.Unsent} />,
+            <StatelessNotificationBadge symbol="!" count={0} level={NotificationLevel.Unsent} />,
         );
         expect(container.querySelector(".mx_NotificationBadge_highlighted")).not.toBe(null);
     });
 
     it("has knock style", () => {
         const { container } = render(
-            <StatelessNotificationBadge symbol="!" count={0} color={NotificationColor.Red} knocked={true} />,
+            <StatelessNotificationBadge symbol="!" count={0} level={NotificationLevel.Highlight} knocked={true} />,
         );
         expect(container.querySelector(".mx_NotificationBadge_dot")).not.toBeInTheDocument();
         expect(container.querySelector(".mx_NotificationBadge_knocked")).toBeInTheDocument();
diff --git a/test/components/views/rooms/RoomHeader/VideoRoomChatButton-test.tsx b/test/components/views/rooms/RoomHeader/VideoRoomChatButton-test.tsx
index b515a1f87ae..bc9eb10b560 100644
--- a/test/components/views/rooms/RoomHeader/VideoRoomChatButton-test.tsx
+++ b/test/components/views/rooms/RoomHeader/VideoRoomChatButton-test.tsx
@@ -25,7 +25,7 @@ import { SDKContext, SdkContextClass } from "../../../../../src/contexts/SDKCont
 import RightPanelStore from "../../../../../src/stores/right-panel/RightPanelStore";
 import { getMockClientWithEventEmitter, mockClientMethodsUser } from "../../../../test-utils";
 import { RoomNotificationState } from "../../../../../src/stores/notifications/RoomNotificationState";
-import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../../src/stores/notifications/NotificationLevel";
 import { NotificationStateEvents } from "../../../../../src/stores/notifications/NotificationState";
 import { RightPanelPhases } from "../../../../../src/stores/right-panel/RightPanelStorePhases";
 
@@ -46,11 +46,11 @@ describe("<VideoRoomChatButton />", () => {
         return room;
     };
 
-    const mockRoomNotificationState = (room: Room, color: NotificationColor): RoomNotificationState => {
+    const mockRoomNotificationState = (room: Room, level: NotificationLevel): RoomNotificationState => {
         const roomNotificationState = new RoomNotificationState(room);
 
         // @ts-ignore ugly mocking
-        roomNotificationState._color = color;
+        roomNotificationState._level = level;
         jest.spyOn(sdkContext.roomNotificationStateStore, "getRoomState").mockReturnValue(roomNotificationState);
         return roomNotificationState;
     };
@@ -105,7 +105,7 @@ describe("<VideoRoomChatButton />", () => {
 
     it("renders button with an unread marker when room is unread", () => {
         const room = makeRoom();
-        mockRoomNotificationState(room, NotificationColor.Bold);
+        mockRoomNotificationState(room, NotificationLevel.Activity);
         getComponent(room);
 
         // snapshot includes `data-indicator` attribute
@@ -116,14 +116,14 @@ describe("<VideoRoomChatButton />", () => {
     it("adds unread marker when room notification state changes to unread", () => {
         const room = makeRoom();
         // start in read state
-        const notificationState = mockRoomNotificationState(room, NotificationColor.None);
+        const notificationState = mockRoomNotificationState(room, NotificationLevel.None);
         getComponent(room);
 
         // no unread marker
         expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeFalsy();
 
         // @ts-ignore ugly mocking
-        notificationState._color = NotificationColor.Red;
+        notificationState._level = NotificationLevel.Highlight;
         notificationState.emit(NotificationStateEvents.Update);
 
         // unread marker
@@ -133,14 +133,14 @@ describe("<VideoRoomChatButton />", () => {
     it("clears unread marker when room notification state changes to read", () => {
         const room = makeRoom();
         // start in unread state
-        const notificationState = mockRoomNotificationState(room, NotificationColor.Red);
+        const notificationState = mockRoomNotificationState(room, NotificationLevel.Highlight);
         getComponent(room);
 
         // unread marker
         expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeTruthy();
 
         // @ts-ignore ugly mocking
-        notificationState._color = NotificationColor.None;
+        notificationState._level = NotificationLevel.None;
         notificationState.emit(NotificationStateEvents.Update);
 
         // unread marker cleared
diff --git a/test/components/views/spaces/SpaceTreeLevel-test.tsx b/test/components/views/spaces/SpaceTreeLevel-test.tsx
index b067bb34bd4..8a13a3b4d27 100644
--- a/test/components/views/spaces/SpaceTreeLevel-test.tsx
+++ b/test/components/views/spaces/SpaceTreeLevel-test.tsx
@@ -26,7 +26,7 @@ import { SpaceButton } from "../../../../src/components/views/spaces/SpaceTreeLe
 import { MetaSpace, SpaceKey } from "../../../../src/stores/spaces";
 import SpaceStore from "../../../../src/stores/spaces/SpaceStore";
 import { StaticNotificationState } from "../../../../src/stores/notifications/StaticNotificationState";
-import { NotificationColor } from "../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../src/stores/notifications/NotificationLevel";
 
 jest.mock("../../../../src/stores/spaces/SpaceStore", () => {
     // eslint-disable-next-line @typescript-eslint/no-var-requires
@@ -117,7 +117,7 @@ describe("SpaceButton", () => {
         });
 
         it("should render notificationState if one is provided", () => {
-            const notificationState = new StaticNotificationState(null, 8, NotificationColor.Grey);
+            const notificationState = new StaticNotificationState(null, 8, NotificationLevel.Notification);
 
             const { container, asFragment } = render(
                 <SpaceButton
diff --git a/test/hooks/room/useRoomThreadNotifications-test.tsx b/test/hooks/room/useRoomThreadNotifications-test.tsx
index 6b5a61ebca6..ee0afee8cae 100644
--- a/test/hooks/room/useRoomThreadNotifications-test.tsx
+++ b/test/hooks/room/useRoomThreadNotifications-test.tsx
@@ -20,7 +20,7 @@ import { MatrixClient, NotificationCountType, Room } from "matrix-js-sdk/src/mat
 import { useRoomThreadNotifications } from "../../../src/hooks/room/useRoomThreadNotifications";
 import { stubClient } from "../../test-utils";
 import { MatrixClientPeg } from "../../../src/MatrixClientPeg";
-import { NotificationColor } from "../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../src/stores/notifications/NotificationLevel";
 import { populateThread } from "../../test-utils/threads";
 
 function render(room: Room) {
@@ -41,21 +41,21 @@ describe("useRoomThreadNotifications", () => {
     it("returns none if no thread in the room has notifications", async () => {
         const { result } = render(room);
 
-        expect(result.current).toBe(NotificationColor.None);
+        expect(result.current).toBe(NotificationLevel.None);
     });
 
     it("returns red if a thread in the room has a highlight notification", async () => {
         room.setThreadUnreadNotificationCount("flooble", NotificationCountType.Highlight, 1);
         const { result } = render(room);
 
-        expect(result.current).toBe(NotificationColor.Red);
+        expect(result.current).toBe(NotificationLevel.Highlight);
     });
 
     it("returns grey if a thread in the room has a normal notification", async () => {
         room.setThreadUnreadNotificationCount("flooble", NotificationCountType.Total, 1);
         const { result } = render(room);
 
-        expect(result.current).toBe(NotificationColor.Grey);
+        expect(result.current).toBe(NotificationLevel.Notification);
     });
 
     it("returns bold if a thread in the room unread messages", async () => {
@@ -68,6 +68,6 @@ describe("useRoomThreadNotifications", () => {
 
         const { result } = render(room);
 
-        expect(result.current).toBe(NotificationColor.Bold);
+        expect(result.current).toBe(NotificationLevel.Activity);
     });
 });
diff --git a/test/hooks/useUnreadNotifications-test.ts b/test/hooks/useUnreadNotifications-test.ts
index 0bfd83351cc..504dbfddb1c 100644
--- a/test/hooks/useUnreadNotifications-test.ts
+++ b/test/hooks/useUnreadNotifications-test.ts
@@ -19,7 +19,7 @@ import { EventStatus, NotificationCountType, PendingEventOrdering, Room } from "
 
 import type { MatrixClient } from "matrix-js-sdk/src/matrix";
 import { useUnreadNotifications } from "../../src/hooks/useUnreadNotifications";
-import { NotificationColor } from "../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../src/stores/notifications/NotificationLevel";
 import { mkEvent, muteRoom, stubClient } from "../test-utils";
 
 describe("useUnreadNotifications", () => {
@@ -40,10 +40,10 @@ describe("useUnreadNotifications", () => {
 
     it("shows nothing by default", async () => {
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, symbol, count } = result.current;
+        const { level, symbol, count } = result.current;
 
         expect(symbol).toBe(null);
-        expect(color).toBe(NotificationColor.None);
+        expect(level).toBe(NotificationLevel.None);
         expect(count).toBe(0);
     });
 
@@ -58,10 +58,10 @@ describe("useUnreadNotifications", () => {
         room.addPendingEvent(event, "txn");
 
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, symbol, count } = result.current;
+        const { level, symbol, count } = result.current;
 
         expect(symbol).toBe("!");
-        expect(color).toBe(NotificationColor.Unsent);
+        expect(level).toBe(NotificationLevel.Unsent);
         expect(count).toBeGreaterThan(0);
     });
 
@@ -69,10 +69,10 @@ describe("useUnreadNotifications", () => {
         room.updateMyMembership("invite");
 
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, symbol, count } = result.current;
+        const { level, symbol, count } = result.current;
 
         expect(symbol).toBe("!");
-        expect(color).toBe(NotificationColor.Red);
+        expect(level).toBe(NotificationLevel.Highlight);
         expect(count).toBeGreaterThan(0);
     });
 
@@ -81,9 +81,9 @@ describe("useUnreadNotifications", () => {
         muteRoom(room);
 
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, count } = result.current;
+        const { level, count } = result.current;
 
-        expect(color).toBe(NotificationColor.None);
+        expect(level).toBe(NotificationLevel.None);
         expect(count).toBe(0);
     });
 
@@ -91,9 +91,9 @@ describe("useUnreadNotifications", () => {
         setUnreads(999, 0);
 
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, count } = result.current;
+        const { level, count } = result.current;
 
-        expect(color).toBe(NotificationColor.Grey);
+        expect(level).toBe(NotificationLevel.Notification);
         expect(count).toBe(999);
     });
 
@@ -101,9 +101,9 @@ describe("useUnreadNotifications", () => {
         setUnreads(0, 888);
 
         const { result } = renderHook(() => useUnreadNotifications(room));
-        const { color, count } = result.current;
+        const { level, count } = result.current;
 
-        expect(color).toBe(NotificationColor.Red);
+        expect(level).toBe(NotificationLevel.Highlight);
         expect(count).toBe(888);
     });
 });
diff --git a/test/stores/SpaceStore-test.ts b/test/stores/SpaceStore-test.ts
index 166040a021e..f13174066d4 100644
--- a/test/stores/SpaceStore-test.ts
+++ b/test/stores/SpaceStore-test.ts
@@ -46,7 +46,7 @@ import { MatrixClientPeg } from "../../src/MatrixClientPeg";
 import RoomListStore from "../../src/stores/room-list/RoomListStore";
 import { DefaultTagID } from "../../src/stores/room-list/models";
 import { RoomNotificationStateStore } from "../../src/stores/notifications/RoomNotificationStateStore";
-import { NotificationColor } from "../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../src/stores/notifications/NotificationLevel";
 
 jest.useFakeTimers();
 
@@ -1467,7 +1467,7 @@ describe("SpaceStore", () => {
             const room = mkRoom(room1);
             const state = RoomNotificationStateStore.instance.getRoomState(room);
             // @ts-ignore
-            state._color = NotificationColor.Grey;
+            state._level = NotificationLevel.Notification;
             jest.spyOn(RoomListStore.instance, "orderedLists", "get").mockReturnValue({
                 [DefaultTagID.Untagged]: [room],
             });
diff --git a/test/stores/notifications/NotificationColor-test.ts b/test/stores/notifications/NotificationColor-test.ts
index 1125c47bff8..73708d0a9b6 100644
--- a/test/stores/notifications/NotificationColor-test.ts
+++ b/test/stores/notifications/NotificationColor-test.ts
@@ -14,18 +14,18 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { humanReadableNotificationColor, NotificationColor } from "../../../src/stores/notifications/NotificationColor";
+import { humanReadableNotificationLevel, NotificationLevel } from "../../../src/stores/notifications/NotificationLevel";
 
-describe("NotificationColor", () => {
-    describe("humanReadableNotificationColor", () => {
+describe("NotificationLevel", () => {
+    describe("humanReadableNotificationLevel", () => {
         it.each([
-            [NotificationColor.None, "None"],
-            [NotificationColor.Bold, "Bold"],
-            [NotificationColor.Grey, "Grey"],
-            [NotificationColor.Red, "Red"],
-            [NotificationColor.Unsent, "Unsent"],
+            [NotificationLevel.None, "None"],
+            [NotificationLevel.Activity, "Activity"],
+            [NotificationLevel.Notification, "Notification"],
+            [NotificationLevel.Highlight, "Highlight"],
+            [NotificationLevel.Unsent, "Unsent"],
         ])("correctly maps the output", (color, output) => {
-            expect(humanReadableNotificationColor(color)).toBe(output);
+            expect(humanReadableNotificationLevel(color)).toBe(output);
         });
     });
 });
diff --git a/test/stores/notifications/RoomNotificationState-test.ts b/test/stores/notifications/RoomNotificationState-test.ts
index ad4e450330a..f556afb6dfc 100644
--- a/test/stores/notifications/RoomNotificationState-test.ts
+++ b/test/stores/notifications/RoomNotificationState-test.ts
@@ -28,7 +28,7 @@ import type { MatrixClient } from "matrix-js-sdk/src/matrix";
 import { mkEvent, muteRoom, stubClient } from "../../test-utils";
 import { RoomNotificationState } from "../../../src/stores/notifications/RoomNotificationState";
 import { NotificationStateEvents } from "../../../src/stores/notifications/NotificationState";
-import { NotificationColor } from "../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../src/stores/notifications/NotificationLevel";
 import { createMessageEventContent } from "../../test-utils/events";
 
 describe("RoomNotificationState", () => {
@@ -109,7 +109,7 @@ describe("RoomNotificationState", () => {
         event.status = EventStatus.NOT_SENT;
         room.addPendingEvent(event, "txn");
 
-        expect(roomNotifState.color).toBe(NotificationColor.Unsent);
+        expect(roomNotifState.level).toBe(NotificationLevel.Unsent);
         expect(roomNotifState.symbol).toBe("!");
         expect(roomNotifState.count).toBeGreaterThan(0);
     });
@@ -121,7 +121,7 @@ describe("RoomNotificationState", () => {
         setUnreads(room, 1234, 0);
         room.updateMyMembership("join"); // emit
 
-        expect(roomNotifState.color).toBe(NotificationColor.None);
+        expect(roomNotifState.level).toBe(NotificationLevel.None);
         expect(roomNotifState.symbol).toBe(null);
         expect(roomNotifState.count).toBe(0);
     });
@@ -131,7 +131,7 @@ describe("RoomNotificationState", () => {
 
         room.updateMyMembership("invite"); // emit
 
-        expect(roomNotifState.color).toBe(NotificationColor.Red);
+        expect(roomNotifState.level).toBe(NotificationLevel.Highlight);
         expect(roomNotifState.symbol).toBe("!");
         expect(roomNotifState.count).toBeGreaterThan(0);
     });
@@ -142,7 +142,7 @@ describe("RoomNotificationState", () => {
         setUnreads(room, 4321, 0);
         room.updateMyMembership("join"); // emit
 
-        expect(roomNotifState.color).toBe(NotificationColor.Grey);
+        expect(roomNotifState.level).toBe(NotificationLevel.Notification);
         expect(roomNotifState.symbol).toBe(null);
         expect(roomNotifState.count).toBe(4321);
     });
@@ -153,7 +153,7 @@ describe("RoomNotificationState", () => {
         setUnreads(room, 0, 69);
         room.updateMyMembership("join"); // emit
 
-        expect(roomNotifState.color).toBe(NotificationColor.Red);
+        expect(roomNotifState.level).toBe(NotificationLevel.Highlight);
         expect(roomNotifState.symbol).toBe(null);
         expect(roomNotifState.count).toBe(69);
     });
@@ -173,7 +173,7 @@ describe("RoomNotificationState", () => {
         addThread(room);
         room.updateMyMembership("join"); // emit
 
-        expect(roomNotifState.color).toBe(NotificationColor.Bold);
+        expect(roomNotifState.level).toBe(NotificationLevel.Activity);
         expect(roomNotifState.symbol).toBe(null);
     });
 });
diff --git a/test/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm-test.ts b/test/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm-test.ts
index 7ffc34d4eb9..9d7ffa44260 100644
--- a/test/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm-test.ts
+++ b/test/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm-test.ts
@@ -22,7 +22,7 @@ import { ImportanceAlgorithm } from "../../../../../src/stores/room-list/algorit
 import { SortAlgorithm } from "../../../../../src/stores/room-list/algorithms/models";
 import * as RoomNotifs from "../../../../../src/RoomNotifs";
 import { DefaultTagID, RoomUpdateCause } from "../../../../../src/stores/room-list/models";
-import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../../src/stores/notifications/NotificationLevel";
 import { AlphabeticAlgorithm } from "../../../../../src/stores/room-list/algorithms/tag-sorting/AlphabeticAlgorithm";
 import { getMockClientWithEventEmitter, mockClientMethodsUser } from "../../../../test-utils";
 import { RecentAlgorithm } from "../../../../../src/stores/room-list/algorithms/tag-sorting/RecentAlgorithm";
@@ -75,16 +75,16 @@ describe("ImportanceAlgorithm", () => {
     };
 
     const unreadStates: Record<string, ReturnType<(typeof RoomNotifs)["determineUnreadState"]>> = {
-        red: { symbol: null, count: 1, color: NotificationColor.Red },
-        grey: { symbol: null, count: 1, color: NotificationColor.Grey },
-        none: { symbol: null, count: 0, color: NotificationColor.None },
+        red: { symbol: null, count: 1, level: NotificationLevel.Highlight },
+        grey: { symbol: null, count: 1, level: NotificationLevel.Notification },
+        none: { symbol: null, count: 0, level: NotificationLevel.None },
     };
 
     beforeEach(() => {
         jest.spyOn(RoomNotifs, "determineUnreadState").mockReturnValue({
             symbol: null,
             count: 0,
-            color: NotificationColor.None,
+            level: NotificationLevel.None,
         });
     });
 
@@ -190,7 +190,7 @@ describe("ImportanceAlgorithm", () => {
             jest.spyOn(RoomNotifs, "determineUnreadState").mockReturnValue({
                 symbol: null,
                 count: 0,
-                color: NotificationColor.None,
+                level: NotificationLevel.None,
             });
             const algorithm = setupAlgorithm(sortAlgorithm);
 
@@ -360,7 +360,7 @@ describe("ImportanceAlgorithm", () => {
             jest.spyOn(RoomNotifs, "determineUnreadState").mockReturnValue({
                 symbol: null,
                 count: 0,
-                color: NotificationColor.None,
+                level: NotificationLevel.None,
             });
             const algorithm = setupAlgorithm(sortAlgorithm);
 
diff --git a/test/stores/room-list/algorithms/list-ordering/NaturalAlgorithm-test.ts b/test/stores/room-list/algorithms/list-ordering/NaturalAlgorithm-test.ts
index b9f7dd1b0db..7a26bf65caf 100644
--- a/test/stores/room-list/algorithms/list-ordering/NaturalAlgorithm-test.ts
+++ b/test/stores/room-list/algorithms/list-ordering/NaturalAlgorithm-test.ts
@@ -26,7 +26,7 @@ import { RoomNotificationStateStore } from "../../../../../src/stores/notificati
 import * as RoomNotifs from "../../../../../src/RoomNotifs";
 import { getMockClientWithEventEmitter, mockClientMethodsUser } from "../../../../test-utils";
 import { DEFAULT_PUSH_RULES, makePushRule } from "../../../../test-utils/pushRules";
-import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationLevel } from "../../../../../src/stores/notifications/NotificationLevel";
 
 describe("NaturalAlgorithm", () => {
     const userId = "@alice:server.org";
@@ -197,7 +197,7 @@ describe("NaturalAlgorithm", () => {
             jest.spyOn(RoomNotifs, "determineUnreadState").mockReturnValue({
                 symbol: null,
                 count: 0,
-                color: NotificationColor.None,
+                level: NotificationLevel.None,
             });
         });