Examine source code of Travian Skip Ads

{
  "name": "TravianSkipAds",
  "description": "An extension to skip builder bonus ads in browser game Travian Legends.",
  "version": "1.0",
  "author": "DUDSS",
  "manifest_version": 2,
  "options_ui": {
    "page": "settings.html"
  },
  "browser_action": {
    "default_title": "Disable ad skip",
    "default_icon": {
      "16": "images/3/icon16.png",
      "32": "images/3/icon32.png",
      "48": "images/3/icon48.png",
      "64": "images/3/icon64.png"
    }
  },
  "icons": {
    "16": "images/3/icon16.png",
    "32": "images/3/icon32.png",
    "48": "images/3/icon48.png",
    "64": "images/3/icon64.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content_script.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "inject.js"
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{368bc0ee-e102-493a-bb45-be16fcacc3ad}"
    }
  }
}