Examine source code of Rad Racing

{
  "theme": {
    "images": {
      "theme_frame": "BrowserHeaderRadRacing.jpg"
    },
    "colors": {
      "frame": "#730606",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Rad Racing",
  "manifest_version": 2,
  "description": "I created this persona using just a flat red and the rad racing logo from the movie RAD from 1986"
}