Portion of a display screen for a graphical user interface

FIG. 1 is a front view of a first embodiment of a portion of a display screen for a graphical user interface showing our new design;

FIG. 2 is a front view of a second embodiment of a portion of a display screen for a graphical user interface showing our design; and,

FIG. 3 is a front view of a third embodiment of a portion of a display screen for a graphical user interface showing our new design.

The broken line showing of a portion of a display screen in FIGS. 1 through 3 forms no part of the claimed design. The broken line showing of text and portions of the graphical user interface in FIGS. 1 through 3 represents environmental subject matter and forms no part of the claimed design. The greyscale shading within the claimed circular icon of FIG. 2 represents a contrasting appearance that fill any of the elongated oval icons claimed in FIG. 2 . The cross-hatching within the claimed circular icon of FIG. 3 represents the color red. The drawing of FIG. 3 is lined for color.