Examine source code of Frozen Water 2

{
  "name": "Blue Music",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Blue Ice (3).jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(29, 29, 61, 1)",
      "toolbar": "rgba(150, 201, 242, 0.59)",
      "bookmark_text": "rgba(68, 116, 250, 1)",
      "toolbar_field": "rgba(125, 171, 209, 1)",
      "toolbar_field_text": "rgba(29, 29, 61, 1)",
      "tab_line": "rgba(68, 113, 250, 0.61)"
    }
  }
}