Examine source code of Cloud reflection

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cloud reflection",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(93, 120, 120, 0.53)",
      "toolbar_text": "rgb(230, 241, 242)",
      "frame": "rgb(216, 219, 219)",
      "tab_background_text": "rgb(244, 252, 246)",
      "toolbar_field": "rgba(255, 255, 255, 0.6)",
      "toolbar_field_text": "rgb(9, 14, 14)",
      "tab_line": "rgba(244, 252, 246, 0.98)",
      "popup": "rgb(231, 242, 244)",
      "popup_text": "rgb(84, 84, 84)",
      "tab_loading": "rgba(244, 252, 246, 0.98)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{be565749-5fc3-493c-a814-bc4fc4e1a818}"
    }
  }
}