FIG. 1 is a front view of a display screen or portion thereof with a graphical user interface according to a first embodiment of the new design;
FIG. 2 is a front view of a display screen or portion thereof with a graphical user interface according to a second embodiment of the new design; and,
FIG. 3 is a front view of a display screen or portion thereof with a graphical user interface according to a third embodiment of the new design.
The outermost broken line in the Figures illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining broken lines illustrate elements of the display screen or portion thereof with a graphical user interface that form no part of the claimed design.