They wrote down the details of how they made their logo; the typeface they used, the colors they used, and the reasoning behind it. I guess they could have just

They wrote down the details of how they made their logo; the typeface they used, the colors they used, and the reasoning behind it. I guess they could have just uploaded the design file. I'm gonna guess this is the information Tobias Bernard (the designer) provided them after creating the logo. This is basic design/UI stuff in my mind. I do find it a little funny they don't use 'systemd green' for the hyperlinks on the page, and instead use a different, similar color.