sure. didn't you just download the master from github? it's what i did.
You're running the windows GUI version (pyw) and not the console script version (py). Download the right file and you'll be good.
There are green button and I still have pyw.. I cannot find one with py.
Get the original here:This program is a simple GUI for the already existing Custom Splash Script for ReiNX.
i read your thread and just tried it and it worked. i did it by drag and dropping because screw typing in directories and file names.
downloaded py script.
installed python3 via brew
installed Pillow
then i typed "python3" dragged the script into the terminal window, then i dragged a png file. the script ran and made a "splash.bin" in my home directory