Some developers/QAs complain the color of directory or executable files is hard to see and suggest to use a more bright color. I agree with this suggestion so make this patch. The look and feel is much better now. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>