FIG. 1 is a perspective view of a display screen or portion thereof with a graphical user interface, shown in the environment of a tablet;
FIG. 2 is a front view thereof;
FIG. 3 a perspective view of a display screen or portion thereof with a graphical user interface, shown in the environment of a monitor; and,
FIG. 4 is a front view thereof.
The broken line showing of a display screen with a graphical user interface is included for the purpose of illustrating portion of the article and forms no part of the claimed design. The broken line showing of a tablet and monitor is included for the purpose of illustrating environmental structure and forms no part of the claimed design.