Hmmm, the icon could be different for your case (mine is a gear due to my Linux theme). As for it not running there are a couple of things you could try, hope it helps 😁
- Check if you are clicking on the (.x86_64) and not (.pck). (.x86_64) Is the correct one.
- Check if it has permission to be run as executable (right click on it, go to properties, and enable checkbox that says "allow running file as executable")
- Check if you are using 32 bit Linux, instead of 64 bit (if it is 32 bit then you need the 32 bit version of pixelorama). If you don't know how to check it, you can download the 32 bit pixelorama version and see if it runs or not