I think my last install was your July 13th changes (maybe the 6th?). That one worked perfectly, though the color wheel was less than optimal at lower brightnesses. The latest install though now has a brightness slider on one side of the color wheel and the white slider along the bottom. Unfortunately, the color wheel for me is now totally black regardless of brightness or white levels. I am not getting any javascript or missing file errors in the browser console, and I do see it sending M150 commands - though R, U, and B are always 0. W and P parameters are changing correctly.
I found an element within the page source:
Changing opacity="0" brought back the color to the color wheel - but that was not enough to get the M150 sending the proper colors.
Testing in Chrome and the new Edge (which is basically Chrome anyway).