Examine source code of Cloud 99

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cloud 9",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0)",
      "toolbar_text": "rgb(71, 19, 225)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(255, 255, 255, 0.33)",
      "toolbar_field_text": "rgb(74, 6, 250)",
      "tab_line": "rgb(255, 221, 34)",
      "popup": "rgb(188, 239, 250)",
      "popup_text": "rgb(19, 19, 21)",
      "ntp_text": "rgb(255, 219, 91)",
      "popup_border": "rgb(171, 5, 216)",
      "tab_loading": "rgb(255, 221, 34)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{12eac74f-778b-4ed5-af7f-0441a1d5bf98}"
    }
  }
}