The ornamental design for a displayscreen or portion thereof with icon, as shown and described.
The patent file contains at least one drawing executed in color. Copies of this patent with color drawings 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 my new design according to a first embodiment; and,
FIG. 2 is a front view of a display screen or portion thereof with icon showing my new design according to a second embodiment.
The broken lines in the figures depict a display screen or portion thereof and form no part of the claimed design.