Display Screen or Portion Thereof with Transitional Graphical User Interface

The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.

1. Display Screen or Portion Thereof with Transitional Graphical User Interface

FIG. 1 . 1 is a front view of a display screen or portion thereof with transitional graphical user interface showing a first image of the transitional graphical user interface;

FIG. 1 . 2 is a front view of a display screen or portion thereof with transitional graphical user interface showing a pair of display screen portions showing simultaneous second images of the transitional graphical user interface; and

FIG. 1 . 3 is a front view of a display screen or portion thereof with transitional graphical user interface showing a third image of the transitional graphical user interface thereof.

The peripheral dashed broken lines illustrate a display screen or portion thereof, and form no part of the claimed design.

The broken lines shown within the peripheral dashed broken lines illustrate portions of the transitional graphical user interface that form no part of the claimed design.

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