Well done Serene
Make sure you post some pics as you create, we'd love to see your works
@Gone - Lets not forget you were one of the guys that helped me make progress with short hair, and your stuff looks excellent man! and thanks for your kind words
I have not yet used colour maps, but I intend to soon.
I've been using the hair colour in Distribute tab, the base hair is 'slightly' darker than the tip. Salt and pepper I generally set minimum to Zero and maximum to 100-200, depending on what effect im after.
In DS, with the hair selected, I go into the surfaces tab and add colour and darken the RColour (Primary Specular) and TRT Colour (Secondary Specular), this assists the hair colour and corrects the grey appearance of the hair that occurs with darker Garibaldi hair. You can also reduce the Specular strength 'TRT Intensity' and 'R Intensity'.
By the looks of peoples work that uses colour maps, I'm assuming it's the figures Diffuse texture bieng used. MangeyD has been using that feature notably on the recent tiger. I think the Dif texture may need to be resized to 1024x1024 pixels and saved as a PNG so that it works with Garibaldi possibly. Mangey will be able to explain I'm sure