Excel rates a zero

A couple of months ago (about June 2024) I watched a Live demonstration on TikTok for these LED hats by YoYoway. During the demonstration we were told unlimited text, we could change colors, and I thought he said we could even change the font! Viewers typed in their ideas so they could see it appear on the cap! It really was a great demonstration and he made it look EASY. I probably should have asked him to show us the app as he made the changes. During that demonstration, I bought four hats for an event THIS Sunday. So, as I'm getting one hat ready I'm discovering I can't change the font c