You can change the artwork that's displayed for any station that you find with search.
 

If the station has existing artwork in our database, that will be used by default, but in many cases, it doesn't look great, so we give you the ability to update it. You need to go into the station's info view on the platform you're using - start by selecting a station to play it. Then:
 

iOS: Tap on the Info button in the upper-right corner of the screen.
tvOS: Swipe up on the remote to reveal the control panel, then select the Info button on the right.
macOS: Click on the Info button in the lower-right corner of the window.
 

From the station info screen, tap on the "Change Logo" to customize the graphic that's displayed. The background color can be adjusted with the "Change Color" button. You can provide a custom image on iOS and macOS using the "Select an Image…" button.