The mark consists of The logo is a square image divided vertically in half. The left side has a white background and "the equal sign" followed by "the letter d" (HEX3D64) on the foreground. Both of these characters are in dark gray and "the letter d" (HEX64) is centered vertically within the logo. The horizontal distance between the right edge of "the letter d" (HEX64) and the center of the logo is the same as the distance between the left edge of the logo and the edge of "the equal sign" (HEX3D). The right side of the logo has a green background and "the letter i" followed by "the letter o" (HEX696F) on the foreground. Both of these characters are in white. A circle, with a white background, is located half way between "the letter d" (HEX3D) and "the letter i" (HEX69); and sharing its center, is a smaller circle with a green border and a white background. The border at the bottom of the second circle is aligned with the lower end "the letter d" (HEX3D). All characters are aligned vertically and equally spaced amongst them.