I’ve gotten a very nice setup here all thanks to @xaviml 's controllerx and deconz.
I can now add my IKEA controllers to deconz, and have them control WLED, I even have it set up to handle a group with both WLED and IKEA bulbs in it, and it is sweet .
Unfortunately it looks like the WLED doesn’t support xy_color, which makes the ‘arrows’ on the IKEA 5-button controller not work properly (color change).
The dim/brighten and on/off works perfectly.
I’m not sure that WLED itself support xy_color, but maybe the integration can ‘compensate’ for that?
Hmm, @frenck just reported that the integration already supports hs and xy.
I will try and set the integration to specifically use xy color mode, and see if that works.