Examine source code of Burgundy theme

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Burgundy theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(128, 0, 32)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(131, 131, 131)",
      "toolbar_field": "rgb(128, 0, 32)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(220, 20, 60)",
      "popup": "rgb(178, 34, 34)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgb(178, 34, 34)",
      "icons_attention": "rgb(178, 34, 34)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(128, 0, 32)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(87, 0, 35)",
      "sidebar_border": "rgb(0, 0, 0)",
      "sidebar_highlight": "rgb(178, 34, 34)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(128, 0, 32)",
      "tab_loading": "rgb(255, 255, 255)",
      "tab_selected": "rgb(128, 0, 32)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(178, 0, 69)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8667f7b2-7eb0-4a35-ac49-af10f6a82505}"
    }
  }
}