Missing App Drawer Icon (Flatpak)

Most appropriate sub-area of Processing 4?

PDE

Processing version

4.5.3

Operating system

Debian Forky, Gnome 50.2

Bug description

Hi, I just found out that you are now shipping a standalone .flatpak file on your releases. Happy to see that! (Although still not yet on flathub, I was happy to give it a try 👀 https://github.com/processing/processing4/issues/1301).

Steps to reproduce this

Anyway, I downloaded the .flatpak file, then ran

flatpak install processing-4.5.3-linux-x64.flatpak

Opened the app drawer, and the app shows with a generic icon.

Additional Context

This other issue on the snap version might be related. https://github.com/processing/processing4/issues/1331

Would you like to work on the issue?

No, I’m just reporting the issue