Examine source code of Hex color generator

{
  "manifest_version": 2,
  "name": "Hex color generator",
  "version": "1.0",
  "description": "Hex color is a six-digit code representing the amount of red, green, and blue that makes up the color. The hex color generator gives the hex code of the selected color.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/hex-logo.png"
    }
  },
  "icons": {
    "128": "images/hex-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{59d40470-96fa-426d-923a-a3330109dae4}"
    }
  }
}