Spell Icon Timeout

[Suuzi]

When defining Either Icons or IconStyles for spells, is there any way to make them greyed out when the spell is not useable for a period ? E.g Just like using a spell in a hotbar when it goes dark and lights up again when ready.

I think I need to use an Effect style or maybe GameData.Maintained.Spell_1,2 etc

But I don't know how to work this into either an Icon, or IconStyle. Has anyone got an example ?

Am I right in thinking that these effects need to be overlayed on top of the icons?

Cheers

Suu