Examine source code of pick a random color Basic

{
  "manifest_version": 2,
  "name": "pick a random color Basic",
  "version": "1.0",
  "description": "The pick a random color utility is an interesting utility that allows you to quickly change colors by simply clicking on the color change button.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/color-logo.png"
    }
  },
  "icons": {
    "128": "images/color-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5d98daf2-2441-453a-bec5-aba9d7fb2143}"
    }
  }
}