Color is not claimed as a feature of the mark.
The mark consists of "GRIND." is written in all caps in the bold arial font. The "." (Period) in "GRIND.", is also written in the the bold font. The holes in the letters "R" and "D" are filled in the same color as it's written in. Each letter and punctuation mark are single spaced apart. "GRIND." is surrounded by a rectangle that is also in bold.