Examine source code of Sydney Skyline

{
  "name": "Sydney Skyline",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Sydney Skyline Theme Background.jpg"
    },
    "colors": {
      "frame": "rgba(217, 41, 73, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(44, 93, 207, 1)",
      "bookmark_text": "rgba(26, 24, 24, 1)",
      "toolbar_field": "rgba(168, 167, 217, 1)",
      "toolbar_field_text": "rgba(180, 210, 240, 1)",
      "tab_line": "rgba(82, 199, 94, 1)"
    }
  }
}