Examine source code of TYPO3 Workbench

{
  "manifest_version": 2,
  "default_locale": "en",
  "name": "__MSG_appName__",
  "short_name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "version": "2.0.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "typo3workbench@visionconnect.de",
      "strict_min_version": "100.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "openlogin/js/openlogin.js",
      "base/js/contextMenu.js",
      "base/js/checkforRSSupdates.js"
    ]
  },
  "options_ui": {
    "page": "base/html/options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/typo3*"
      ],
      "js": [
        "base/js/contentscript.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": {
      "16": "base/layout/logo_16.png",
      "48": "base/layout/logo_48.png",
      "128": "base/layout/logo_128.png"
    },
    "default_popup": "base/html/popup.html",
    "default_title": "__MSG_BrowserActionTitle__"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "bookmarks",
    "contextMenus",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'  ",
  "icons": {
    "16": "base/layout/logo_16.png",
    "48": "base/layout/logo_48.png",
    "128": "base/layout/logo_128.png"
  }
}