Examine source code of ScrollWatch

{
  "manifest_version": 3,
  "name": "ScrollWatch",
  "version": "1.0.0",
  "description": "Prevent doomscrolling by setting custom rules for websites.",
  "permissions": [
    "storage",
    "tabs",
    "alarms"
  ],
  "action": {
    "default_popup": "index.html",
    "default_icon": "icon.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "background": {
    "type": "module",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "scrollwatch@darshgupta.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}