Examine source code of JamLegend

{
  "theme": {
    "images": {
      "theme_frame": "JLHEADERRESIZEREFORMAT.jpg"
    },
    "colors": {
      "frame": "#ffa90a",
      "tab_background_text": "#c900d4"
    }
  },
  "version": "2.0",
  "name": "JamLegend",
  "manifest_version": 2,
  "description": "A JamLegend themed persona with a link back to a free online massive multiplayer flash guitar hero-like game."
}