Examine source code of Debian GTK Red

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Debian GTK Red",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(245, 245, 245)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(35, 35, 35)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(215, 10, 83)",
      "popup": "rgb(245, 245, 245)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_background_separator": "rgb(0, 0, 0)",
      "tab_selected": "rgb(215, 10, 83)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(208, 208, 208)",
      "toolbar_field_border_focus": "rgb(215, 10, 83)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(215, 10, 83)",
      "tab_loading": "rgb(215, 10, 83)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a1039ba9-e652-4e45-a2d2-6acf3e92d6d0}"
    }
  }
}