manifest.json

{
    "manifest_version": 2,
    "name": "Scratch Discord Rich Presence",
    "version": "1.0.0",
    "description": "Updates your Discord status with a rich presence whenever you are on https://scratch.mit.edu",
    "icons": {
      "16": "icons/icon_16.png",
      "32": "icons/icon_32.png",
      "48": "icons/icon_48.png",
      "128": "icons/icon_128.png"
    },
    "permissions": [
      "tabs",
      "storage"
    ],
    "background": {
      "scripts": ["background.js"],
      "persistent": false
    },
    "content_scripts": [
      {
        "matches": [
          "https://scratch.mit.edu/projects/*/editor"
        ],
        "js": [
          "project.js"
        ]
      },
      {
        "matches": [
          "https://scratch.mit.edu/"
        ],
        "js": [
          "idling.js"
        ]
      },
      {
        "matches": [
          "https://scratch.mit.edu/projects/*/"
        ],
        "js": [
          "playing.js"
        ]
      }
    ]
  }