Examine source code of Slice Custom Search

{
  "name": "Slice Custom Search",
  "short_name": "Slice Search",
  "description": "Using the omnibar (i.e URL bar), use the following pattern: [ss] [key] [query]. Typing 'ss' into the omnibar activates the use of this extension. 'key' is the key defined in the settings below. 'query' is your search term(s).",
  "version": "1.4",
  "manifest_version": 2,
  "icons": {
    "32": "icons/slice-optimized.svg",
    "48": "icons/slice-optimized.svg",
    "64": "icons/slice-optimized.svg",
    "96": "icons/slice-optimized.svg",
    "128": "icons/slice-optimized.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "omnibox": {
    "keyword": "ss"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "chrome_style": true
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{74161e77-2f37-418e-8c81-71a7aa704af8}"
    }
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "19": "icons/slice-optimized-19x19.png",
      "38": "icons/slice-optimized-38x38.png"
    },
    "default_title": "Slice Custom Search"
  }
}