Display screen or portion thereof with transitional graphical user interface

Description

FIG. 1 depicts a front view of a first appearance state in a sequence of a display screen or portion thereof with transitional graphical user interface, showing our new design;

FIG. 2 depicts a second appearance state thereof; and,

FIG. 3 depicts a third appearance state thereof.

The outer perimeter shown in broken lines in FIGS. 1-3 illustrates a display screen or portion thereof and forms no part of the design. The remaining broken lines in FIGS. 1-3, including the inner perimeter broken lines, illustrate portions of the graphical user interface that form no part of the claimed design.

The appearance of the image 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 claim.

Claims

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