_noise_

I don't know what issues you are having with STM32 I2C, but I have done dozens of STM32 designs and have never had an issue and needed to bitbang it.

Also QT provides a cross-platform color chooser widget.

https://doc.qt.io/qt-5/qcolordialog.html

KDE's KColorChooser is simply a wrapper around this and is less than 100 lines of code, mostly setting up the about box.

https://kde.org/applications/graphics/kcolorchooser/

This could have trivially been made into a cross-platform color chooser that uses significantly less resources.

On my Linux box Fucking Color Chooser spawns 4 fucking processes uses 128 MB of RAM and 4% CPU.

KColorChooser uses 15 MB in one process and near zero CPU.

Please stop making everything a web application.

Doesn't seem to fucking work.

On Linux it seems confused with a muti-monitor setup, the orbit button does nothing.

On Windows, in a VM, the orbit button opens a web browser to https://www.tonymccoy.me/orbit/#ffffff and gets a 404 Not Found