Pirate Audio: Screen keeps showing last track after stopped


I installed the Priate Audio Line-Out board on a Pi 3 v1.2. Everything is working well, except for one issue:
If I stop playing a song and remove everything from the playlist in Mopidy, the screen keeps showing the title and album art of the last track which was played. Is this the intended behaviour?

The option I am thinking of is to define an own image (or even multiple images as a slideshow) which is displayed if Mopidy is idle (not playing anything).
I already tested the gif.py script in the examples of the ST7789, which works well. But I’m just starting to learn Python and, thus, I don’t know how to combine this with the frontend script (/usr/local/lib/python3.7/dist-packages/mopidy_pidi/frontend.py) which obviously is used to display the title and album art.

I would appreciate if anybody could give me a hint and point me in the right direction.
Thanks in advance!