Examine source code of Lilypond

{
  "theme": {
    "images": {
      "theme_frame": "Lilyhead.jpg"
    },
    "colors": {
      "frame": "#6e6b6b",
      "tab_background_text": "#050505"
    }
  },
  "version": "2.0",
  "name": "Lilypond",
  "manifest_version": 2,
  "description": "photo taken on a mobile of the first flower a waterlily in my new pond!"
}