Display screen or portion thereof with transitional graphical user interface

Description

FIG. 1 is the first image of a first embodiment in a sequence of a display screen or portion thereof with transitional graphical user interface showing our new design;

FIG. 2 is the second image thereof;

FIG. 3 is the first image of a second embodiment in a sequence of a display screen or portion thereof with transitional graphical user interface showing our new design;

FIG. 4 is the second image thereof;

FIG. 5 is the first image of a third embodiment in a sequence of a display screen or portion thereof with transitional graphical user interface showing our new design;

FIG. 6 is the second image thereof;

FIG. 7 is the first image of a fourth embodiment in a sequence of a display screen or portion thereof with transitional graphical user interface showing our new design; and,

FIG. 8 is the second image thereof.

The outermost broken line in the figures depicting the display screen or portion thereof is for environmental purposes only and forms no part of the claimed design.

The remaining broken lines in the figures show portions of the transitional graphical user interface which form no part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1 and 2, FIGS. 3 and 4, FIGS. 5 and 6, and FIGS. 7 and 8, respectively. The process or period in which one image transitions to another image forms no part of the claimed design.

Claims

We claim the ornamental design for a display screen or portion thereof with transitional graphical user interface, as shown and described.