FIG. 1 is a front view of a display screen or portion thereof with transitional graphical user interface showing the first image in a sequence.
FIG. 2 is the second image of the sequence.
FIG. 3 is the third image of the sequence.
FIG. 4 is the fourth image of the sequence.
FIG. 5 is the fifth image of the sequence.
FIG. 6 is the sixth image of the sequence; and,
FIG. 7 is the seventh image of the sequence.
The appearance of the transitional image represented by the sequence sequentially transitions between the images shown in FIGS. 1-7. The process or period in which one image transitions to another image forms no part of the claimed design.
The outermost broken line rectangle in each figure illustrates a display screen or portion thereof and forms no part of the claimed design.