@sleve_mcdichael said in Why do some versions of Retroarch look so different?:
@TPR that's the "menu driver" setting. RP default use the rgui driver cause it lightweight and perform well on low powered hardware like RasPi. I think the blue one in your picture is xmb. Other choices are glui or ozone.
retroarch.cfg excerpt:
# Menu driver to use. ("rgui", "xmb", "glui") menu_driver = "rgui"
Found it! Awesome... thanks! For some reason I never knew this was an option.