custom screen alpha blended according to alphamask

[svatem1]

I defined my custom screen, in which i have some layout/ui structure, it's basically chat-like UI. I'm spawning this screen via show screen myscreen statement. Is there any simple way how to say "hey, here's my picture, take it's alpha channel and mask my screen onto the background according to it"?

Or different question -> in that screen, i have frame defined, can i somehow say "take this frame, apply this alpha channel to it and all of its children recursively"?

thank you in advance

[Ocelot]

All screen elements take at property which allows to apply arbitrary (including immideately-defined) transforms. alpha is a valid transform property.
You cannot apply transform to the screen itself, but you can explicitely create a root fixed element (which usually is created implicitely) and apply that property to it.

Not sure about your first question. I would try to play around with model-based rendering, shaders and different blend modes, maybe creating one yourself...

[svatem1]

Thank you for your response. The first question is basically the same as 2nd, the only difference being -> if I do not want to have constant alpha but some picture with alpha channel instead (to e.g. create gradient), is it possible?