I've been trying to make concise configs without too many bars which are just tracking a CD.
This is hard for a few specs, Havoc springs to mind, but for others they've got a buff or a debuff without an associated CD for it. In an effort to stop the display ballooning out to 8+ bars I've been using these bars to track a CD too.

While this is great for people who look in the config or test a bit on a target dummy I suspect we've got a few users who haven't picked up on what's going on.

I'm proposing we add an icon on the RHS of the display which matches the CD being tracked.
While on CD it should be desaturated, or hidden all together if it's a long CD, but when it's coming up to being ready it should fade in, becoming full colour when it's ready.
An option to make it glow would be good for reminding about DPS CD but not an on by default thing as knowing a defensive is ready doesn't mean it should be constantly glowing.

I think this might be a bit better than the idea of a tooltip telling people what is being tracked, but while it appeals to me I might be in my own little world so feedback is welcome. :-)