I have become interested in these RGB light strips in the last few weeks. My idea started off with making an EMDR Light bar for some self therapy. It is essentially a light moving back & forth along 24 or 25 LEDs. I got that pattern pretty much the way I want it. Just have to tweak it some & be able to adjust the speed. Anyway after playing with some of these patterns using an arduino UNO and having to rewrite the firmware each time to test a new pattern, I started wondering if there was some simulator software for this. I found these simulators so far.
https://codepen.io/dougalcampbell/pen/fnjFu
This 2nd one seems to work better. It does not work in IE for me, but does work in firefox.
https://forum.arduino.cc/index.php?topic=412703.0
After I get back from vacation, I am going to look into this further. Does anyone have any other links to led light Simulators or ideas along this line?