[DiSpy]

I found this code in threadbit in v 3.6.5:

<td class="alt1Active" id="td_threadtitle_$thread[realthreadid]" title="$thread[preview]">

and replaced it with this:

<if condition="$thread['sticky'] == 1">
	<td class="stickybg" id="td_threadtitle_$thread[realthreadid]" title="$thread[preview]">
<else />
<td class="alt1Active" id="td_threadtitle_$thread[realthreadid]" title="$thread[preview]">
</if>

...and don't forget to add:

.stickybg
{
	background-color: #hex;
	color: #000000;
}

to your CSS style definitions (and replace #hex with a color).