Multicolor complication icon is white

I'm trying to display a color icon as a complication when "Multicolor" setting is set (Utility, Modular, Extra Large, Siri screens).

I have a 2 color PNG icon with alpha channel and some semitransparent elements. However, my icon is always displayed as white.

I do NOT set tint for `CLKImageProvider`.


From Apple's app and some 3rd party (e.g. Carrot Weather), I can see that it is possible. Who do I miss?


Testing on watchOS 4.3 simulator.

Multicolor complication icon is white
 
 
Q