Display Screen or Portion Thereof with Transitional Graphical User Interface

The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) 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 a first image of the claimed design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof;

FIG. 4 is a fourth image thereof;

FIG. 5 is a fifth image thereof;

FIG. 6 is a sixth image thereof;

FIG. 7 is a seventh image thereof;

FIG. 8 is an eighth image thereof;

FIG. 9 is a ninth image thereof;

FIG. 10 is a tenth image thereof;

FIG. 11 is an eleventh image thereof;

FIG. 12 is a twelfth image thereof;

FIG. 13 is a thirteenth image thereof;

FIG. 14 is a fourteenth image thereof;

FIG. 15 is a fifteenth image thereof;

FIG. 16 is a sixteenth image thereof;

FIG. 17 is a seventeenth image thereof;

FIG. 18 is an eighteenth image thereof;

FIG. 19 is a nineteenth image thereof;

FIG. 20 is a twentieth image thereof;

FIG. 21 is a twenty-first image thereof;

FIG. 22 is a twenty-second image thereof;

FIG. 23 is a twenty-third image thereof;

FIG. 24 is a twenty-fourth image thereof;

FIG. 25 is a twenty-fifth image thereof;

FIG. 26 is a twenty-sixth image thereof;

FIG. 27 is a twenty-seventh image thereof;

FIG. 28 is a twenty-eighth image thereof;

FIG. 29 is a twenty-ninth image thereof;

FIG. 30 is a thirtieth image thereof;

FIG. 31 is a thirty-first image thereof; and,

FIG. 32 is a thirty-second image thereof.

The broken lines in the figures show a display screen or portion thereof, and form no part of the claimed design.

The portions colored in light red do not form part of claimed design.

The black background is included to accurately depict the ornamental features of the claimed design and forms no part thereof.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1 - 32 . The process or period in which one image transitions to another forms no part of the claimed design.