Follow-up: this trait is too broadly named. Something like ImageVolume would be better.

Originally posted by @alice-i-cecile in #23160 (comment)

We tend to keep our type and trait names quite descriptive, such that this makes sense in a global "game engine context".

This trait is only for an obscure property of images, not for "audio volume" or "physical volume".

I would also happily accept a refactor to eliminate it!