Navigation button set for a computing device

FIG. 1 is a first isometric view of a navigation button set for a computing device;

FIG. 2 is a second isometric view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is an enlarged front view thereof, shown without the broken line environment for clarity of illustration; and,

FIG. 5 is an enlarged side view of the navigation button set for a computing device, shown without some of the broken line environment for clarity of illustration.

The portions of the computing device shown in broken lines form no part of the claimed design.