Examine source code of Systematic Mind

{
  "name": "Systematic Mind",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "bg-006-51ab495c5f5dde6a3cddb22484acd00d.svg"
    },
    "colors": {
      "frame": "rgba(49, 51, 53, 1)",
      "tab_background_text": "rgba(128, 128, 128, 0.5)",
      "toolbar": "rgba(43, 43, 43, 1)",
      "bookmark_text": "rgba(128, 128, 128, 1)",
      "toolbar_field": "rgba(128, 128, 128, 0.2)",
      "toolbar_field_text": "rgba(77, 144, 254, 1)"
    }
  }
}