Is it possible to replace assets for characters on standard character select?

[Choysauce]

I wanted to know if anyone knows how to replace the assets for the standard character select screen (Color 1/2/3/4, not CAS).

I'm trying to make it so that when I play someone online, it'll show the modded assets I installed instead of the default costumes. (e.g. Cassandra Color 1 shows up as Wonder Woman or something)

My main goal for this is to be able to play online ranked and swap out Ivy's standard costume (and other's) when I fight against her. My wife really gets mad when she sees me play against her cuz she doesn't like how she dresses. I want to respect my wife's wishes but not have to close the game every time I queue up against Ivy.