Color picker for a dimmer after upgrade from 0.59 to 0.64.3

After upgrade i get a color picker on the state card for a ordinary dimmer.
It is a mysensors led dimmer.
Before the upgrade it was just a slider for brightness.
Now there is one for brightness, one for white value and a big round color picker.
Is this some new feature or a bug?
My dimmer works but it seems unnecessarily when i can’t use the functions.

Yeah this is a consequence of some core and frontend changes. We should adjust the code in the mysensors light platform to only return the relevant supported features for each sensor type, S_DIMMER, S_RGB_LIGHT, S_RGBW_LIGHT.

Thanks. Not much to dogfight now then?
Just hope for a fix in newer versions…?