Hello Tannerhorton36
It sounds like you want to know if you can change the appearance of the Apple Music app while using Dark Mode, correct? We'd like to go over some information.
From the screenshot you provided, it looks like the Apple Music app is displaying as expected when using Dark Mode. More about using Dark Mode here: Use Dark Mode on your iPhone, iPad, or iPod touch
While there's not a specific setting to adjust the color for the background in the Apple Music app, you can adjust the color of your display by using Color Filters. More about Color Filters and display preferences here: Use display and text size preferences on your iPhone, iPad, and iPod touch
We hope that helps. Take care!