LZW42 Fade Color Temp

I am looking for a way to gradually fade the color temp.
Everything I have tried they just jump to the color temp. (webcore emulated fade color temp doesn’t work)

Anyone got any ideas? Is this possible?

Smartthings v3 hub
LZW42 bulbs

I have this on the hubitat drivers, and it is really nice… I need to port that change over … But ST handles that differently and couldn’t find the appropriate documentation…

I do have some zigbee osram lights/handler that does this they just don’t do other things I want. I’m not sure if it’s similar and also not sure what I’m looking for in the code.

If I gave you the code do you know what to look for by chance?