Examine source code of Musical Sky

{
  "theme": {
    "images": {
      "theme_frame": "MusicalSkyH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#050505"
    }
  },
  "version": "2.0",
  "name": "Musical Sky",
  "manifest_version": 2,
  "description": "sun, sky, clouds, bird, music notes, song, abstract, nature"
}