/*!
 * jQuery UI Checkboxradio @VERSION
 * http://jqueryui.com
 *
 * Copyright 2013 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/checkboxradio/#theming
 */

.ui-checkboxradio-label .ui-icon-background {
	border-radius: .12em;
	border: none;
}
.ui-checkboxradio-radio-label .ui-icon-background {
	width: 16px;
	height: 16px;
	border-radius: 1em;
	overflow: visible;
	border: none;
}
.ui-checkboxradio-radio-label.ui-checkboxradio-checked .ui-icon,
.ui-checkboxradio-radio-label.ui-checkboxradio-checked:hover .ui-icon {
	background-image: none;
	width: 8px;
	height: 8px;
	border-width: 4px;
	border-style: solid;
}
.ui-checkboxradio-disabled {
	pointer-events: none;
}

/*!
 * jQuery UI Checkboxradio @VERSION
 * http://jqueryui.com
 *
 * Copyright 2013 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/checkboxradio/#theming
 */

.ui-checkboxradio-label .ui-icon-background {
	box-shadow: inset 1px 1px 1px #ccc;
	border-radius: .12em;
	border: none;
}
.ui-checkboxradio-radio-label .ui-icon-background {
	width: 16px;
	height: 16px;
	border-radius: 1em;
	overflow: visible;
	border: none;
}
.ui-checkboxradio-radio-label.ui-checkboxradio-checked .ui-icon,
.ui-checkboxradio-radio-label.ui-checkboxradio-checked:hover .ui-icon {
	background-image: none;
	width: 8px;
	height: 8px;
	border-width: 4px;
	border-style: solid;
}
.ui-checkboxradio-disabled {
	pointer-events: none;
}

Add inset shadow to iconbackground to make it stand out
Checkboxradio: Add inset shadow to iconbackground to make it stand out
