Examine source code of Alternative KDE Blark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "kde",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(55, 64, 71)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(55, 64, 71)",
      "tab_background_text": "rgb(188, 188, 188)",
      "toolbar_field": "rgb(42, 52, 62)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(55, 64, 71)",
      "popup": "rgb(55, 64, 71)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(106, 108, 112)",
      "frame_inactive": "rgb(124, 124, 124)",
      "icons_attention": "rgb(28, 208, 51)",
      "popup_border": "rgb(59, 66, 71)",
      "sidebar_border": "rgb(55, 64, 71)",
      "sidebar": "rgb(55, 64, 71)",
      "tab_loading": "rgb(30, 151, 206)",
      "tab_selected": "rgb(42, 52, 62)",
      "toolbar_bottom_separator": "rgb(52, 59, 67)",
      "toolbar_field_border": "rgb(55, 64, 71)",
      "toolbar_top_separator": "rgb(52, 59, 67)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d16e9bb5-f97d-4da8-ab6f-59c595ae6270}"
    }
  }
}