The ornamental design for a displayscreen or portion thereof with icon, as shown and described.
The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a display screen or portion thereof with icon showing the claimed design; and,
FIG. 2 is another embodiment thereof.
The broken lines in the figures show a display screen or portion thereof, and form no part of the claimed design.