A third button sits on the wardrobe model alongside Apply and Cancel and
appears under the same condition: Clear invalid slots, shown with the warning
that an appearance has not been unlocked yet. It was simply not in the list,
so it kept its native green pill against the two now-flat buttons beside it.
It is drawn from the same atlas as Apply -- the green variant of the gold file
-- so Skin.RedButtonArt already matches it and the existing path covers it
whole; probing its regions after the pass comes back nil for all of them. With
three names the list is read in a loop rather than repeated call by call.
Apply is disabled for as long as an invalid slot is pending, and with the pill
gone nothing said so any more: the ElvUI panel is drawn the same either way,
and the atlas was the only thing carrying the distinction. The label is greyed
instead, the same yellow/grey pair the specialization menu's Activate button
uses. There is no event for the state change -- clearing the invalid slots
enables Apply on the spot -- so it is driven from the button's update and
compared against the cached state, again as Activate does it, and the border
goes with it: Apply comes alive under the very cursor that just clicked Clear
invalid slots, and OnEnter has been and gone by then.
Narcasung
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