[ericellb]

What does this PR do?

• Glow when Visible - For buffs that generally are only shown when missing this allows you to have them glow. Useful to notify when missing important buffs like Battle Shout that need refreshing.
• Bar Glows: Glow When Usable: New feature part of bar Glows that will glow the ability on your action bar when usaable. Useful to notify when you can use Revenge, Overpower, Execute, Victory Rush etc...
• Bar Glows are now saved per ability instead of per button, so stance and form swaps no longer move a glow onto a different ability than the one you set it up on.
• All new options are off by default. Events and frames only exist while one of these glows is in use. Rebinding reuses the existing CDM event handler

How was it tested?

• Tested in game: Show when missing & Glow on Shield Block, will glow the ability when its not active and usable
• Tested in game: Glow action bar on Revenge, Overpower, Execute will glow when the ability can be used

Screenshots

Buff Glow when Missing (Used Shield Block since BS is broken on Blizz CDM now)

Glow Action bar Config

Glowing Revenge + Execute when usable on Bars

Checklist

• New settings default OFF (no behavior change without opt-in)
• Zero cost while disabled: no events registered, no polling, no hooks doing work, no frames built
• Cheap while enabled: event-driven (no polling, no timer-based logic, no per-frame allocations)
• No writes onto Blizzard-owned frames (weak-table pattern used); HookScript/hooksecurefunc only, never SetScript on Blizzard frames
• Tested in-game on live; no version gates or pre-Midnight APIs added

[ericellb]

This is used to handle stance / form swapping. So the glow you setup is on a per ability basis instead of a per action bar button number basis

[ericellb]

Was already 34 exisitng TakeShell call sites, raised this just to ensure it doesnt break