Examine source code of Cabernet

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cabernet",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(154, 78, 96)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(75, 94, 97)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(131, 59, 71)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0.43)",
      "popup": "rgb(75, 94, 97)",
      "popup_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(99, 138, 122)",
      "tab_selected": "rgb(90, 112, 115)",
      "toolbar_bottom_separator": "rgb(131, 59, 71)",
      "toolbar_field_border_focus": "rgba(255, 255, 255, 0.43)",
      "toolbar_field_highlight": "rgb(99, 138, 122)",
      "tab_loading": "rgba(255, 255, 255, 0.43)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1b4a51c8-2008-4bd9-85a2-13b3fae991bf}"
    }
  }
}