WowAce

----- What steps will reproduce the problem?
0. Use some kind of cooldown countdown
1. Cast something with a cooldown that applies a (de)buff, e.g. Flame Strike
2. Button will be on cooldown (shared shocks), target will have debuff
3. See many colorful numbers on a tiny button

----- Please provide any additional information below.
I'm a huge fan of having things "clean" and straight forward. If I can't re-cast a spell because it is on cooldown, I don't need to know how much longer that (de)buff will last. Displaying the colored border highlight is usually enough for me, but having a cooldown and countdown on the same button is uneccessary.
While you can already disable the border flash/glow in the config, why not add that option to countdown texts (and while you're at it, border highlights), too? :)

There are already options to hide aura countdowns and stacks globally in the main configuration, namely "No countdown" and "No application count". You can also apply these settings per spell.

Am I overlooking something in your issue ?

What I mean is, I want to have the countdown for buff/debuff duration, but *only* when the action button's spell is not on cooldown. So, if for example OmniCC displays its cooldown text, I want to hide InlineAura's countdown, but once the spell is off cooldown I want the IA countdown to be displayed, again.

Oh, I see. That may be possible, but the texts won't be shown with the same font to help telling the difference between the two.