><img src="theme:h-trackbar-thumb-down-normal">theme:h-trackbar-thumb-down-normal</option>
        <option><img src="theme:h-trackbar-thumb-down-hover">theme:h-trackbar-thumb-down-hover</option>
        <option><img src="theme:h-trackbar-thumb-down-pressed">theme:h-trackbar-thumb-down-pressed</option>
        <option><img src="theme:h-trackbar-thumb-down-disabled">theme:h-trackbar-thumb-down-disabled</option>
        <option><img src="theme:h-trackbar-thumb-up-normal">theme:h-trackbar-thumb-up-normal</optio