Examine source code of grenoranblack

{
  "name": "bg-021-775b159da029a74f5c76e835cd65e9dc",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "bg-021-775b159da029a74f5c76e835cd65e9dc.svg"
    },
    "colors": {
      "frame": "rgba(38, 38, 38, 1)",
      "tab_background_text": "rgba(163, 169, 0, 1)",
      "toolbar": "rgba(38, 38, 38, 1)",
      "bookmark_text": "rgba(247, 148, 0, 1)",
      "toolbar_field": "rgba(202, 174, 0, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(247, 148, 0, 1)"
    }
  }
}