Examine source code of wow-radio.org

{
  "theme": {
    "images": {
      "theme_frame": "wow-radio-persona.png"
    },
    "colors": {
      "frame": "#412aa8",
      "tab_background_text": "#1633f0"
    }
  },
  "version": "2.0",
  "name": "wow-radio.org",
  "manifest_version": 2,
  "description": "we are wow radio"
}