As I have an anti-piracy stance I don't have any VC roms so I cannot promise this kind of support however I may look into the banner and icon formats and enable easy editing of them as a part of this or a seperate tool (depending on the complexity of the formats and the time I have available).
Gericom said he would look into VC games and being able to replace roms and stuff with his new program, so if he ends up figuring it out before releasing his already amazing program, it won't be a problem.