Examine source code of Throwdown lyric

{
  "theme": {
    "images": {
      "theme_frame": "grim-reaper-black-pattern.jpg"
    },
    "colors": {
      "frame": "#241e1e",
      "tab_background_text": "#bfbbbb"
    }
  },
  "version": "2.0",
  "name": "Throwdown lyric",
  "manifest_version": 2,
  "description": "throwdown lyrics."
}