Examine source code of Light Bubble Theme

{
  "name": "Bubbles",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1rainbow.png"
    },
    "colors": {
      "frame": "rgba(52, 67, 97, 1)",
      "tab_background_text": "rgba(214, 215, 255, 1)",
      "toolbar": "rgba(217, 217, 217, 0)",
      "bookmark_text": "rgba(219, 224, 255, 1)",
      "toolbar_field": "rgba(163, 163, 163, 1)",
      "toolbar_field_text": "rgba(178, 218, 255, 1)",
      "tab_line": "rgba(133, 92, 92, 0)"
    }
  }
}