[PD] Gem questions

[vade]

Hello list.

2 quick questions.

1) Is there a way to enable an alpha channel for the [color ( message 
to gemwin? I ask because jitters [erase_color] attribute with an alpha 
between 0 and 1 allows for interesting trailing effects when geometry 
is moved, and leaves a gradated trail behind it. Quite nice.

2) Is there a way to change blend mode attributes for gemhead objects? 
Ie force a renderchain to render with one of the 7 source and 7 alpha 
blending modes that should be available?

forgive me if this is in the docs somewhere, but I havent seen it 
mentioned.

Thanks,

- { v a d e } / /