Thank you, I just made 2 different 90x60 icon jpg, it’s attached to my post. Maybe try it and let me know if the resolution works. I never used these icons before and the latest version of HALion creates an image itself I saw, so I did not bother with it.
EDIT:
I just checked the factory images for HALion libraries, they are in 96x246 px and png, so the 90x60 format you mentioned seems odd.