Examine source code of UIComfort DarkTheme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "UIComfort DarkTheme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(40, 42, 54)",
      "toolbar_text": "rgb(248, 248, 242)",
      "frame": "rgb(40, 42, 54)",
      "tab_background_text": "rgb(98, 114, 164)",
      "toolbar_field": "rgb(68, 71, 90)",
      "toolbar_field_text": "rgb(248, 248, 242)",
      "tab_line": "rgb(80, 250, 123)",
      "popup": "rgb(68, 71, 90)",
      "popup_text": "rgb(248, 248, 242)",
      "button_background_active": "rgb(80, 250, 123)",
      "button_background_hover": "rgb(98, 114, 164)",
      "icons_attention": "rgb(255, 184, 108)",
      "icons": "rgb(248, 248, 242)",
      "ntp_background": "rgb(40, 42, 54)",
      "ntp_text": "rgb(248, 248, 242)",
      "popup_highlight_text": "rgb(248, 248, 242)",
      "popup_highlight": "rgb(68, 71, 90)",
      "sidebar_border": "rgb(68, 71, 90)",
      "sidebar_highlight_text": "rgb(248, 248, 242)",
      "sidebar_highlight": "rgb(68, 71, 90)",
      "sidebar_text": "rgb(248, 248, 242)",
      "tab_loading": "rgb(121, 208, 241)",
      "tab_selected": "rgb(68, 71, 90)",
      "tab_text": "rgb(248, 248, 242)",
      "toolbar_bottom_separator": "rgb(98, 114, 164)",
      "toolbar_field_border_focus": "rgb(98, 114, 164)",
      "toolbar_field_focus": "rgb(68, 71, 90)",
      "toolbar_field_highlight_text": "rgb(248, 248, 242)",
      "toolbar_field_separator": "rgb(98, 114, 164)",
      "toolbar_field_text_focus": "rgb(248, 248, 242)",
      "toolbar_vertical_separator": "rgb(98, 114, 164)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7709da0-6e7e-411a-bf6e-79ce379b0eb9}"
    }
  }
}