Examine source code of CC Search

{
  "name": "CC Search",
  "author": "Creative Commons",
  "description": "Search, filter, and use images in the Public Domain and under Creative Commons licenses.",
  "version": "1.3.8",
  "manifest_version": 2,
  "icons": {
    "16": "icons/cc16.png",
    "32": "icons/cc32.png",
    "48": "icons/cc48.png",
    "96": "icons/cc96.png",
    "128": "icons/cc128.png"
  },
  "browser_action": {
    "default_title": "CC Search",
    "default_icon": {
      "16": "icons/cc16.png",
      "24": "icons/cc24.png",
      "32": "icons/cc32.png"
    },
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ccsearchextension@creativecommons.org"
    }
  }
}