Examine source code of PokéFollower Cursor

{
  "manifest_version": 3,
  "name": "Pokemon PokéFollower Cursor",
  "version": "4.1.2",
  "description": "Pick a cute retro 2D Pokémon sprite that follows your cursor on web pages.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "hongsy@pokefollower.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_title": "PokéFollower",
    "default_popup": "popup/index.html",
    "default_icon": {
      "16": "assets/icons/pokeball-16.png",
      "32": "assets/icons/pokeball-32.png"
    }
  },
  "icons": {
    "16": "assets/icons/pokeball-16.png",
    "32": "assets/icons/pokeball-32.png",
    "48": "assets/icons/pokeball-48.png",
    "128": "assets/icons/pokeball-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/sprites/*",
        "assets/ui/*",
        "assets/packs/*/*",
        "assets/packs/*/*/*",
        "assets/raw/*/*",
        "assets/raw/*/*/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}