Examine source code of FuriousRadio

{
  "theme": {
    "images": {
      "theme_frame": "furiousbanner2.png"
    },
    "colors": {
      "frame": "#fa0a0a",
      "tab_background_text": "#f7f2f2"
    }
  },
  "version": "2.0",
  "name": "FuriousRadio",
  "manifest_version": 2,
  "description": "Furiousradio.com\nOh yeah"
}