Toggle Action Button Glow
The ability to turn the action button glow for ability procs off would be extremely helpful for frost deathknights. The killing machine proc causes obliterate and frostscythe to glow, which is misleading, because even if killing machine procs, you don't want to use obliterate or frostscythe unless you have >=4 runes. Also, when rime procs, it causes howling blast to glow. This is misleading because you don't want to use it if you have >90 runic power, due to howling blast generating 10 runic power, plus the chance that it generates 5 runic power on ticks. I don't know of any other specific specs or classes this would be useful for, but I imagine there must be at least a few others. Having the ability to turn off action button glow would allow us to use weakaruas to instead tune spell alerts around our optimal rotations. Having the ability to TUNE action button glow (within tuk/elvui) around specific class power conditions and spell procs would be the ultimate solution to this issue.
Simply: just an option to toggle action button glow on or off would be great.
A more detailed approach: having the ability to select which spells gain action button glow and for what reason or condition would be a dream come true.