New for FxCop 1.36 - Privates and internals are grayed out in the tree
One of the small, but rather useful changes we made in 1.36 was to gray out privates and internals in the Targets tree. This makes it quick and easy to see the public API for a particular assembly.
This is similar to the feature already available in .NET Reflector, except that FxCop also grays out any member that is not visible outside of the assembly; for example, a public method within an internal class.