Examine source code of CitiScape

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "CitiScape",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(20, 20, 20, 0.76)",
      "toolbar_text": "rgb(238, 238, 238)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(0, 0, 0, 0.43)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(71, 160, 248)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(228, 228, 228)",
      "popup_border": "rgb(29, 29, 29)",
      "tab_loading": "rgb(71, 160, 248)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a033c8c5-b441-4ee6-8315-e574947d03f6}"
    }
  }
}