Examine source code of Simple Purple Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Simple Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(224, 128, 255)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(180, 25, 255)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(158, 0, 202)",
      "popup": "rgb(240, 220, 249)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(158, 0, 202)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ca863160-5253-4c5f-9413-991e0121a8b0}"
    }
  }
}