Blend Modes Tutorial?

Hey.

Can anyone point me to a tutorial about the different Blend Modes? I can't seem to understand how any of them work nor how to use them properly.

Check the "examples" folder packed with C2 install there is a "Blend modes.capx" file that should explain and contain all the informations you need.

Be sure to also check the related manual article.

I've read those but still feel uneducated on the subject.

1.How can I change the black background that appears while using some of the Blend Modes?

Like how do i specify what source(i assume that's the background) is?

I tried everything, and stuff is still mostly black.

2. Why does transparency tend to fall to black too?

Techniques using Masks and such is something I'd also like to learn about.