Examine source code of Waterfox flow

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Waterfox flow",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(213, 216, 216)",
      "toolbar_text": "rgb(84, 82, 83)",
      "frame": "rgb(189, 185, 185)",
      "tab_background_text": "rgb(61, 60, 60)",
      "toolbar_field": "rgb(189, 193, 193)",
      "toolbar_field_text": "rgb(82, 82, 84)",
      "tab_line": "rgb(116, 114, 114)",
      "popup": "rgb(242, 242, 245)",
      "popup_text": "rgb(96, 96, 99)",
      "popup_border": "rgb(180, 180, 182)",
      "toolbar_bottom_separator": "rgb(188, 188, 193)",
      "toolbar_field_border": "rgb(186, 186, 189)",
      "toolbar_top_separator": "rgb(213, 213, 218)",
      "tab_loading": "rgb(116, 114, 114)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{70c8d1c1-6fd5-487d-8a4d-11f521f89c0b}"
    }
  }
}