The 100 Thieves mark: a red ring cut by a long diagonal stroke, with a black handwritten "100" running across it. Only two colours carry the drawing, red and black, over a white outline that keeps the letters readable on dark brick. The background is transparent, so the ring and the lettering land on the wall on their own.

A wad3 spray, 80x64 pixels. One pixel is one unit on the wall and a player in CS 1.6 is 72 units tall, so the logo reaches about shoulder height and is a little wider than a player. The palette holds 97 entries out of 256, and 55.6% of the frame is transparent. The file weighs 7,656 bytes, well inside the 16 KB tempdecal limit. Two internet shortcuts were packed alongside it in the source archive.