Examine source code of Bitaas

{
  "name": "__MSG_extensionName__",
  "version": "0.0.9resigned1",
  "manifest_version": 2,
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://www.bitaas.com.br",
  "icons": {
    "16": "src/assets/images/icons/16_16.png",
    "19": "src/assets/images/icons/19_19.png",
    "32": "src/assets/images/icons/32_32.png",
    "48": "src/assets/images/icons/48_48.png",
    "128": "src/assets/images/icons/128_128.png"
  },
  "browser_action": {
    "default_icon": "src/assets/images/icons/128_128.png"
  },
  "default_locale": "pt_BR",
  "offline_enabled": false,
  "permissions": [
    "storage",
    "tabs",
    "*://*/*"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "vendor/jquery/jquery.min.js",
      "vendor/xregexp/xregexp-all.js",
      "src/service/config.js",
      "src/service/browser.js",
      "src/storage/cache.js",
      "src/service/user.js",
      "src/service/store.js",
      "src/inject/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "css": [
        "src/assets/css/styles.css"
      ],
      "js": [
        "vendor/jquery/jquery.min.js",
        "vendor/xregexp/xregexp-all.js",
        "src/service/config.js",
        "src/service/browser.js",
        "src/service/offer.js",
        "src/inject/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "src/assets/images/logo.png",
    "src/assets/images/tag.png",
    "src/assets/images/tick.png",
    "src/assets/images/loading.gif"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d80e0e7b-b80a-4ce7-95a4-f438efb2cc43}"
    }
  }
}