I don’t want a theme

My fiancé and I found out we’re expecting a boy! I don’t want any sort of theme, I just want to keep things fairly neutral with greens, yellows, and greys. While I’m a huge Disney fan (former cast member and current annual pass holder) I don’t want any characters. I’m having trouble with thinking of a way to tell people that. Like, a friend of mine that’s throwing my shower really wants me to pick a theme and I just don’t want one... I guess I should just be quiet and be grateful. 🤷🏻‍♀️