Light icon displays white when on

Recently, maybe after I upgraded to 104.3, light entities are showing “white” when the are turned on and not the standard yellow.

Any idea why?

I just upgraded my system to 104.3, and the light bulb color is OK for me.
Try the “default” theme to see if the light bulb goes to yellow. If it does, then perhaps something in your theme changed or needs to be changed.