Thanks! It worked now all my PFPs match!

1: PFP in this context means Profile Picture 2: I’ve tried .png .jpeg & .webp 3: I used Krita to make the image 4: I don’t have anything else I could use

As a Linux Mint user who has only used Linux Mint, Yes, I’ve hardly used the Terminal, I’ve really only used it to download & run specific Software which is really just optional most of the time.