    <option><img src="theme:check-checked-pressed">theme:check-checked-pressed</option>
        <option><img src="theme:check-checked-disabled">theme:check-checked-disabled</option>
        <option><img src="theme:check-mixed-normal">theme:check-mixed-normal</option>
        <option><img src="theme:check-mixed-hover">theme:check-mixed-hover</option>
        <option><img src="theme:check-mixed-pressed">theme:check-mixed-pressed</option>
        <option><img src="theme:check-mixed-disabled">theme:check-mixed-