Color is not claimed as a feature of the mark.
The mark consists of the letters "wt", lower case, stylized font, lighter color, on a rectangular darker background, with the upper left and lower right corners of the rectangle blunted off, followed by the word "WELLTESTING" comprising the word "WELL", with a stylized "W", in capital letters, in a darker color followed by the word "TESTING" in a lighter color with capital letters.
WELL TESTING