Color picker helps selecting colors for neopixels on circuitpython devices. A python script runs on a host computer and sends colors via the data comport to a circuitpython device.
Uses Adafruit Board Toolkit https://github.com/adafruit/Adafruit_Board_Toolkit
Copy boot.py and Color_picker_mcu.py onto the circuitpython device. Then run color_picker.py, which opens a window with 4 sliders, RGB and a brightness slider.