Examine source code of Random Color Generator

{
  "manifest_version": 2,
  "name": "Random Color Generator",
  "version": "1.0",
  "description": "Random Color Generator is a cool utility. This utility will help users to generate random colors and display their color codes.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/gencolo-logo.png"
    }
  },
  "icons": {
    "128": "images/gencolo-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0cc15293-a982-45b5-adb3-423127e378a4}"
    }
  }
}