Display screen or portion thereof with a graphical user interface

Description

FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with a graphical user interface showing the new design;

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

FIG. 3 is another front view of the first embodiment, shown with different broken line subject matter;

FIG. 4 is another front view of the first embodiment, shown with different broken line subject matter;

FIG. 5 is a front view of a third embodiment

FIG. 6 is another front view of the first embodiment, shown with different broken line subject matter;

FIG. 7 is a front view of a fourth embodiment; and,

FIG. 8 is a front view of a fifth embodiment.

The outermost broken line rectangle illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining broken lines illustrate portions of the graphical user interface that form no part of the claimed design.

Claims

The ornamental design for a display screen or portion thereof with a graphical user interface, as shown and described.