Display screen or portion thereof with transitional graphical user interface

Description

The patent or application file contains at least one drawing executed in color (FIGS. 1-3). Copies of this patent or patent application publication with color drawings will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a front view of a display screen or portion thereof with transitional graphical user interface showing our new design;

FIG. 2 is a second image thereof; and,

FIG. 3 is a third image thereof.

The outermost dash-dotted broken lines in the drawings illustrate the display screen or portion thereof and form no part of the claimed design.

The appearance of the transitional image transitions between the images shown in FIGS. 1 through 3. The process or period in which one image transitions to another forms no part of the claimed design.

Claims

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