I see where TFH is coming from. The eye make up is one of those things that doesn’t need explaining. Like can you imagine seeing the bat signal and then cue a “suit up” sequence that involves Bruce putting on his eye make-up.
Bruce Wayne: I need new eye liner.
Lucius: Eyeliner is a little 90's emo, Mr. Wayne.
Bruce Wayne: I'm not talking fashion, so much as function.
[Fox inspects the new make-up palettes.]
Lucius: You want to be able to make a statement.
Bruce Wayne: Well, it sure would make suiting up easier.