This mod highlights spellstealable/purgable buffs the same way that the Blizzard default targetframe does.
Options included:
- Color of the glow
- Extra padding for the glow-texture (Depending on the thickness of your borders, or if you use masque etc you can adjust for that here)
Be sure to reload your UI after making any changes for it to take full effect.
The mod itself is very much inspired by https://wago.io/turHC0a5k cred to @continuity