Examine source code of MusicBee

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#C6D9F1",
      "tab_background_text": "#Ffcc33"
    }
  },
  "version": "2.0",
  "name": "MusicBee",
  "manifest_version": 2,
  "description": "Combining MusicBee user created icons with the forum background.\nSuitable for either the zealous fan or casual user."
}