Examine source code of Gehry!

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Gehry!",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(46, 31, 12)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(52, 54, 56)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(196, 192, 193)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(104, 104, 110)",
      "sidebar_border": "rgb(24, 14, 3)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(84, 59, 29)",
      "tab_background_separator": "rgb(19, 10, 0)",
      "tab_loading": "rgb(196, 192, 193)"
    }
  }
}