Hi everyone!
Well, I have no problems with rendering mode = 1. 
But with rendering mode = 1 (WebGL only) I have some issues:
It looks like that I can set opacity of some sprites only once (e.g. opacity = 100. And I can see it).
After the next opacity changes I can read correct opacity values from the sprite
but I don’t see any opacity changes on the sprite.
Is there any workaround?
I just want to make player and enemies half-transparent after damage.
sure, it is.