@teastain Thanks, that was what I was looking for. I got it to compile/load after installing the M5Core2 by M5Stack library. I agree with 'Brilliant and un to watch'.

I just received a Core2. Plugging it in a very cool screen came up with lots of interesting stuff, especially the FFT sound display. I went to M5Burner to make sure it was loaded with the most recent software and after loading it with UIFlow 1.10.3 it shows a simple screen with 3 buttons. Is there any way to reload that original screen? And more interesting, what language was it written in and is it possible to get source?