manifest.json

{
  "manifest_version": 3,
  "name": "snake for yt",
  "description": "Replaces Youtube's loading animation with the original loading circle that turns into a snake game when an arrow key is pressed. Shift + arrow key starts a game when the video is not loading.",
  "version": "1.0",
  "permissions": ["activeTab", "storage"],
  "web_accessible_resources": [
    {
      "resources": ["skins/skins.json"],
      "matches": ["https://*.youtube.com/*"]
    }
  ],
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "icons/popup_icon_16.png",
      "32": "icons/popup_icon_32.png",
      "48": "icons/popup_icon_48.png",
      "128": "icons/popup_icon_128.png"
    }
  },
  "content_scripts": [
    {
      "matches": ["https://*.youtube.com/*"],
      "js": ["content.js"],
      "css": ["css/style.css", "css/spinner.css"],
      "run_at": "document_start"
    }
  ]
}