Examine source code of Autofill Forms

{
  "version": "0.1.2",
  "manifest_version": 2,
  "name": "Autofill Forms",
  "short_name": "autofill-forms",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "http://mybrowseraddon.com/autofill-forms.html",
  "options_ui": {
    "open_in_tab": true,
    "chrome_style": true,
    "page": "data/options/options.html"
  },
  "description": "Autofill Forms using keyboard shortcut or toolbar button.",
  "browser_action": {
    "default_title": "Autofill Forms",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "commands": {
    "auto-fill-forms": {
      "description": "Autofill Forms",
      "suggested_key": {
        "mac": "Alt+Shift+F",
        "default": "Alt+Shift+F"
      }
    }
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  }
}