Examine source code of Rad Racing 3

{
  "theme": {
    "images": {
      "theme_frame": "BrowserHeaderRadRacing3.jpg"
    },
    "colors": {
      "frame": "#998e8e",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "Rad Racing 3",
  "manifest_version": 2,
  "description": "I made this persona with a black and grey and with the Rad Racing looking like a neon sign."
}