FIG. 1 is a front view if an icon for a portion of a display screen showing my new design;

FIG. 2 is a front view of a second embodiment thereof;

FIG. 3 is a front view of a third embodiment thereof;

FIG. 4 is a front view of a fourth embodiment thereof;

FIG. 5 is a front view of a fifth embodiment thereof;

FIG. 6 is a front view of a sixth embodiment thereof;

FIG. 7 is a front view of a seventh embodiment thereof;

FIG. 8 is a front view of a eighth embodiment thereof; and,

FIG. 9 is a front view of a ninth embodiment thereof.

The broken line showing of a portion of a display screen and other elements form no part of the claimed design.