Icons have black&white stripes - Navigationpanel

HI there,

Since a few days my icons at the bottom of my screen (desktop) where all the shortcuts have white/black strips and don't look how the should anymore.

I have restarted my Mac already, without any results.

Also of course looked up on the internet, but it's hard to typ exactly how it looks like.

If anyone has any suggestions, they're welcome.

Untill then, thanks for your time.

Regards,

Bjorn