applyPersistentTint
Stores the given color as this skeleton's persistent tint and immediately pushes it to every bone via the leather-armor dye channel. The damage flash animation (see tint) now fades back to this value once it completes. While a flash is in flight, the new color is stored but does not clobber the in-flight animation — the flash restore path picks the updated value up when it finishes.
Parameters
color
the color to apply, or null to clear the persistent tint (bones revert to undyed / WHITE)