Examine source code of Regality

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Regal",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(98, 0, 74, 0.31)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(229, 229, 229)",
      "toolbar_field": "rgb(234, 219, 228)",
      "toolbar_field_text": "rgb(191, 12, 85)",
      "tab_line": "rgba(98, 0, 74, 0.41)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "toolbar_field_border_focus": "rgba(255, 255, 255, 0)",
      "toolbar_field_border": "rgba(255, 255, 255, 0)",
      "toolbar_field_focus": "rgb(245, 241, 244)",
      "tab_loading": "rgba(98, 0, 74, 0.41)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fea3f4a6-e429-4dbd-ba6a-d5566fb44aaa}"
    }
  }
}