Display Screen or Portion Thereof Having a Graphical User Interface

A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.

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

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof; and,

FIG. 4 is a fourth image thereof.

The appearance of the display screen or portion thereof having a graphical user interface sequentially transitions between the images shown in FIGS. 1 - 4 . The process or period in which one image transitions to another image forms no part of the claimed design.

The dashed broken lines show the display screen or portion thereof and depict portions of the display screen or portion thereof having a graphical user interface that form no part of the claimed design.

The dot-dashed broken lines represent boundaries of the claimed display screen or portion thereof having a graphical user interface and form no part of the claimed design.