The mark consists of the upper-case letter "G" in the color white against a background area of parallelogram shape in the color black, to the left of the upper-case letter "R" in the color white against a background area of parallelogram shape in the color red, which are both to the left of the upper-case letters GT in the color black.
The color(s) white, black, and red is/are claimed as a feature of the mark.