One Ice tree, different colors

[Artur Woźniak]

Hiya,

Situation:
I have 1 simulated Ice tree with 3 emit from geo, each with different 
color. I have them cached.

Question:

Now, how can I use those 3 colors separately for cached particles in 
rendering. Color Attribute gives me only one color output which is all 
three of them together.
I would like also be able to use that attribute as mask.

Artur