Examine source code of Utopia Enhancer

{
  "name": "Utopia Enhancer",
  "manifest_version": 2,
  "version": "2.4.6resigned1",
  "description": "Provides an enhanced interface for the browser RPG Utopia. Buildings calculator, attack target finder and more.",
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://utopia-game.com/wol/game/*",
        "*://utopia-game.com/wol/kingdom_forum/*",
        "*://utopia-game.com/wol/war_forum/*"
      ],
      "js": [
        "js/lib.min.js",
        "js/ue.min.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "data/*",
    "css/*",
    "fonts/*",
    "templates/*"
  ],
  "options_ui": {
    "page": "templates/options.html",
    "chrome_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af2ac2d5-f09c-4abd-a5b1-a3eff9c45e48}"
    }
  }
}