Display Screen with a Graphical Icon in a Graphical User Interface

FIG. 1 is a first image of a first example of a display screen with a graphical icon in a graphical user interface, showing our new design; and, FIG. 2 is a second image thereof. A first example of the appearance of the display screen with the graphical icon in the graphical user interface is shown in FIG. 1 . A second example of the appearance of the display screen with the graphical icon in the graphical user interface is shown in FIG. 2 . The process or period in which one image transitions to another image forms no part of the claimed design. The broken line depiction of a portion of the graphical user interface is included for the purpose of illustrating portions of the article and forms no part of the claimed design. Further, the broken line showing of a smartphone is included for the purpose of illustrating environmental structure and forms no part of the claimed design.