Examine source code of Dark purple night

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "theme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(56, 49, 67, 0.6)",
      "toolbar_text": "rgb(191, 183, 206)",
      "frame": "rgb(36, 31, 51)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(43, 41, 62, 0.3)",
      "toolbar_field_text": "rgb(212, 203, 227)",
      "tab_line": "rgb(162, 91, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(162, 91, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{63c1dae9-225a-42b6-82fb-a96a5f27482f}"
    }
  }
}