In many cases, there is some additional information I want to add, like which themes the colors were used as background color in, or which palette they come from if there are several different.

I also discovered a lot about the different OSs while researching the colors and I think it's a nice nod towards the museum character of the site to add fun/nerd facts when I stumble upon them.

But true, in many cases there is no need for text - I just removed the tagline which didn't add anything useful.