Just wanted to bring attention to the Sensel Morph and its app which essentially do the same as Chameleon with a touvh screen. However the Sensel is a large Trackpad that can be repurposed and designs created in a similar fashion.
Makes a nice companion to the Surface Dial
However the reason I bring it up here is because it has bluetooth and should work with Windows bluetooth midi. However to get it to work you need to install MIDIBerry, which takes the trakpad data and converts it to midi, and them pipe that to Loopmidi (or other loopback driver) and then in your midi software select the loopback driver.
This is really clunky and there should be a single program that takes combines the role of these 2 bits of software.
I think youre the man to do it 😀