Examine source code of just a violet theme

{
  "manifest_version": 2,
  "version": "5.0",
  "name": "just-a-violet-theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(37, 14, 42)",
      "toolbar_text": "rgb(205, 117, 219)",
      "frame": "rgb(17, 6, 19)",
      "tab_background_text": "rgb(112, 49, 122)",
      "toolbar_field": "rgb(37, 14, 42)",
      "toolbar_field_text": "rgb(112, 49, 122)",
      "tab_line": "rgb(17, 6, 19)",
      "popup": "rgb(17, 6, 19)",
      "popup_text": "rgb(112, 49, 122)",
      "popup_border": "rgba(17, 6, 19, 0)",
      "sidebar_border": "rgba(17, 6, 19, 0)",
      "toolbar_field_border": "rgba(17, 6, 19, 0)",
      "tab_loading": "rgb(17, 6, 19)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4b756793-23c1-4a2e-b4b5-4ec1c705694e}"
    }
  }
}