Control Button of Controller for Electronic Device

FIG. 1 is a perspective view of front, top and left side of a control button of controller for electronic device showing our new design;

FIG. 2 is a perspective view of front, bottom and left side thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view of the control button of controller for electronic device shown in an environment of use.

The broken lines in the drawings depict portions of the control button of controller for electronic device that form no part of the claimed design. The additional broken lines shown in FIG. 9 illustrate environmental subject matter only and from no part of the claimed design. The unshaded surfaces between solid and broken lines form no part of the claimed design.