Examine source code of Constellation

{
  "name": "Stardust",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "pexels-instawalli-189.jpg"
    },
    "colors": {
      "frame": "rgba(3, 14, 26, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(6, 28, 51, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(24, 42, 64, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(20, 90, 166, 1)"
    }
  }
}