Hello, C is Cool White and W is Warm White. Those are channels used for CCT mode.
Please do not set Flag 3 - [LED][Debug] Show raw PWM controller on WWW index instead of new LED RGB/CW/etc picker flag if you want to use our Temperature/RGB controls from OBK web panel.
This device might seem to be in white mode all the time because it may require:
Flag 8 - [LED] Alternate CW light mode (first PWM for warm/cold slider, second for brightness) Most of the devices are simply using PWMs to control Cool White and White Warm directly, but some drivers are using one PWM as a brightness setting and second PWM as a temperature setting. You may just need that flag.
Futhermore, when setting flag 8, you also might need to change PWM channel 4 or 5 role to PWM_n. This should be done when you feel that brightness control or temperature control is inversed.
Well after spending some time reviewing my work, I found my issue with the lights being stuck on white. I had a solder bridge between PMW4 and tx. After removing the bridge it worked perfectly.
My final configuration
P6 - PWM0 - 2
P7 - PMW1 - 1
P8 - PMW2 - 0
P24 - PMW4 - 4
P26 - PMW5 - 3
I also tested Flag 8, and for this device it did not work correctly. So I left Flag 8 unset.
Thanks for a great piece of firmware, it works really well. And once I enabled the home assistant integration, it was also discovered by homebridge-tasmota, and the device showed up immediately in the Apple Home App.