Examine source code of Pillar Light

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pillar Light",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(225, 225, 225)",
      "toolbar_text": "rgb(83, 89, 176)",
      "frame": "rgb(188, 188, 229)",
      "tab_background_text": "rgb(104, 108, 181)",
      "toolbar_field": "rgb(205, 205, 236)",
      "toolbar_field_text": "rgb(86, 91, 180)",
      "tab_line": "rgb(124, 130, 241)",
      "popup": "rgb(225, 225, 225)",
      "popup_text": "rgb(110, 114, 183)",
      "tab_loading": "rgb(124, 130, 241)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bbe8935c-257d-4306-94ab-ec600b87ae74}"
    }
  }
}