Examine source code of Image Assistant

{
  "name": "__MSG_ia__",
  "description": "__MSG_extDescription__",
  "manifest_version": 2,
  "version": "0.9.0.3resigned1",
  "homepage_url": "https://addons.mozilla.org/en-US/firefox/addon/790",
  "default_locale": "en_US",
  "permissions": [
    "activeTab",
    "contextMenus",
    "notifications",
    "nativeMessaging",
    "storage",
    "<all_urls>"
  ],
  "applications": {
    "gecko": {
      "id": "{16f796dd-a279-4548-9b3a-393d1eef31df}",
      "strict_min_version": "52.0a1"
    }
  },
  "background": {
    "scripts": [
      "chrome/content/util/Constants.js",
      "chrome/content/util/logging/Logger.js",
      "chrome/content/util/Utilities.js",
      "chrome/content/overlay/js/ImageAssistantClient.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "chrome/content/util/logging/Logger.js",
        "chrome/content/util/Constants.js",
        "chrome/content/util/Utilities.js",
        "chrome/content/overlay/js/ImageAssistantFrameClient.js"
      ],
      "all_frames": true
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "img/icon.png",
    "platform/saving_launcher.json",
    "platform/Windows/",
    "platform/Windows/x86-32/saving-launcher.exe",
    "platform/Windows/xb86-64/saving-launcher.exe",
    "platform/Linux/",
    "platform/Linux/x86-32/saving-launcher.run",
    "platform/Linux/x86-64/saving-launcher.run"
  ],
  "icons": {
    "48": "img/icon.48x48.png"
  }
}