Examine source code of Game v1.0

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxPersona.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#00ff22"
    }
  },
  "version": "2.0",
  "name": "Game v1.0",
  "manifest_version": 2,
  "description": "Some games and their logos."
}