The mark consists of the word 'illumos' rendered in a stylized font. While the majority of the letters are in dark grey, the letter 'o' is in a vibrant lime green. The 'ill' part of the word is crafted to include vertical lines that give the impression of a multi-dimensional facade, akin to building structures. Each letter in 'ill' is accented on its right side: the 'i' has a hint of lime green, the first 'l' features a stripe of sky blue, and the second 'l' has a touch of light grey, enhancing the three-dimensional effect.
The color(s) Grey, lime green, sky blue is/are claimed as a feature of the mark.
The wording illumos has no meaning in a foreign language.