How about another neutral colour ? The "Splatter Spray" looks alright , IMO . At least it's a grey with blue / red / black splatter mixed in , which complements engine colours .
You don't want them to paint the compartment black because it looks bad and it's not original, but you want them to splatter spray it? My parents used that in their trunk and I just cannot stand it. Looks terrible. But maybe that's just me.