Examine source code of Sky Stone

{
  "name": "Sky Stone",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Screen Shot 2021-09-12 at 4.20.37 PM-min.png"
    },
    "colors": {
      "frame": "rgba(209, 209, 209, 1)",
      "tab_background_text": "rgba(112, 112, 112, 1)",
      "toolbar": "rgba(102, 101, 101, 1)",
      "bookmark_text": "rgba(189, 189, 189, 1)",
      "toolbar_field": "rgba(191, 191, 191, 1)",
      "toolbar_field_text": "rgba(107, 102, 102, 1)",
      "tab_line": "rgba(156, 156, 156, 1)"
    }
  }
}