Currently you only implemented "Art of War" for Ret Paladins.
There's a proc if you do a critical hit with Holy Shock, called "Infusion of Light" (https://www.wowhead.com/wotlk/spell=53576/infusion-of-light).
Looking like this on retail: https://i.imgur.com/EdJE0S8.png

If you can please implement it. I will also try to create a pull request asap if I find time. :)

Implemented in #32

Thanks for the suggestion. Looks like an excellent candidate.

The latest branch implements this spell.

It procs when one of these buffs is found:

• Infusion of Light (Rank 1)
• Infusion of Light (Rank 2)

I’m currently using the "Daybreak" texture:

Here is a demonstration of what I've come up with: Infusion of Light

What do you think of it?

If you have a beta key, you can test it by installing the addon manually:
https://github.com/ennvina/spellactivationoverlay/archive/refs/heads/infusion-of-light.zip
(you will need to rename the folder from spellactivationoverlay-infusion-of-light to SpellActivationOverlay)