Examine source code of Discord UI 2022

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Discord UI 2022",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(54, 57, 63)",
      "toolbar_text": "rgb(174, 174, 174)",
      "frame": "rgb(40, 42, 47)",
      "tab_background_text": "rgb(157, 157, 157)",
      "toolbar_field": "rgba(255, 255, 255, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(120, 146, 218)",
      "popup": "rgb(54, 57, 63)",
      "popup_text": "rgb(154, 154, 154)",
      "button_background_active": "rgba(255, 255, 255, 0.5)",
      "button_background_hover": "rgb(89, 91, 96)",
      "frame_inactive": "rgb(40, 44, 48)",
      "icons_attention": "rgb(120, 146, 218)",
      "icons": "rgb(189, 189, 189)",
      "ntp_background": "rgb(54, 57, 63)",
      "ntp_text": "rgb(208, 208, 208)",
      "popup_border": "rgb(91, 91, 91)",
      "tab_selected": "rgb(59, 61, 67)",
      "tab_text": "rgb(211, 218, 240)",
      "toolbar_bottom_separator": "rgb(75, 80, 87)",
      "toolbar_field_border": "rgba(255, 255, 255, 0)",
      "toolbar_field_focus": "rgb(54, 57, 63)",
      "toolbar_field_highlight": "rgb(97, 112, 154)",
      "toolbar_field_text_focus": "rgb(223, 223, 223)",
      "toolbar_top_separator": "rgb(75, 80, 87)",
      "toolbar_vertical_separator": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgb(120, 146, 218)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1d914f6-a63b-4b8b-863c-79b0e0d0e282}"
    }
  }
}