Layout Sketch Colors

Ok, I hope I am not missing the obvious.   But, I am trying to use a layout sketch to design a mechanism.  Of course the process of creating blocks works well.  But, the real issue is that I can't change the color of my blocks.  Is there a way to do that? am I missing something.  In a part is it very easy to change the color of a sketch making it easy to visualize the various parts.

Thanks,

AL

SolidworksAssemblies