Printable area on mugs

Hello, community!
Recently I am starting with the mugs POD world and some of the designs I have are really good, but I would need to have the mugs handle to have the same color as the background color I am using.

I have been trying to configure/design some mugs on Printify but seems like every mug keeps the handle and close area with a default white/black color. Do you know any provider who could change that or confirm if there is a way to change the color in Printify directly?