Examine source code of BetterFeed

{
  "manifest_version": 3,
  "name": "BetterFeed",
  "version": "0.1",
  "description": "Replace YouTube's algorithmic home with a static, scheduled feed — plus focus modes, daily watch limits, and distraction cleanup.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "declarativeNetRequest",
    "alarms"
  ],
  "host_permissions": [
    "*://www.youtube.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "betterfeed@ibn-5100-tan.github.io",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_title": "BetterFeed Settings",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "shared.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "early.js"
      ],
      "css": [
        "preload.css",
        "features.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "shared.js",
        "content.js"
      ],
      "css": [
        "home.css"
      ]
    }
  ]
}