The ornamental design for a displayscreen or portion thereof with an animatedgraphicaluserinterface, as shown and described.
FIG. 1 is a front view of a display screen or portion thereof with an animated graphical user interface showing a first image in the sequence showing the new design.
FIG. 2 is the second image thereof; and,
FIG. 3 is the third image thereof.
The appearance of the animated user interface sequentially transitions between the images shown in FIGS. 1-3. The process or period in which one image transitions to another forms no part of the claimed design.
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 and form no part of the claimed design. The broken lines below the solid segment of the vertical bar in FIG. 3 illustrate portions of the graphical user interface and form no part of the claimed design. The segmented circle within FIGS. 1-2 forms a part of the claimed design.