Examine source code of Blue Green Sky

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Sky",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(14, 56, 63)",
      "toolbar_text": "rgb(238, 253, 255)",
      "frame": "rgb(21, 78, 87)",
      "tab_background_text": "rgb(214, 214, 214)",
      "toolbar_field": "rgb(21, 78, 87)",
      "toolbar_field_text": "rgb(238, 253, 255)",
      "tab_line": "rgb(238, 253, 255)",
      "popup": "rgb(21, 78, 87)",
      "popup_text": "rgb(238, 253, 255)",
      "icons": "rgb(238, 253, 255)",
      "ntp_text": "rgb(238, 253, 255)",
      "sidebar_highlight": "rgb(21, 78, 87)",
      "sidebar": "rgb(14, 56, 63)",
      "tab_selected": "rgb(30, 115, 130)",
      "tab_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(238, 253, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8db7ad16-b73c-4db7-95b8-9c4966dfaf67}"
    }
  }
}