[Bug] Opacity Showing at 100% When Set to 'Hidden' for All-Unit Buff/Debuffs

[StreetLight777]

**What version of TellMeWhen are you using? **

Version 9.0.2

What steps will reproduce the problem?

1. Select All-Unit Buffs/Debuffs
2. Input a debuff like Entangling Roots in the 'What to Track' section
3. Set the Opacity & Color to 'Hidden' or zero
4. Test the behavior by casting the debuff (Entangling Roots in my case) on a target - you'll notice the icon is shown when the debuff is present rather than being hidden or invisible.

What do you expect to happen? What happens instead?
I know that the icon showing at full Opacity when set t o 'Hidden' is a bug because if you set the Opacity to a super low value like 1%, it actually works as intended and shows the icon at 1% opacity whenever the debuff is present on any target.

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