2022 iPad Pro 12.9 AND Home Button on Screen

Purchased 2022 iPad Pro, first year ipad doesn't come with a physical home button at bottom of ipad. Instead home button is a movable white circle, that often blends into screen..It is very frustrating for a 86 yr old senior with macular degeneration, as frequent accidental tap on home button automatically leave the app and goes to home screen.

Can this "power touch" home button be changed to a different color?

Thank you in advance