[saturdayplace]

All it'd take to make most of these usable is finessing the colors a bit so they don't jump off the page like they do here. It's definitely possible to make the patterns more subtle while retaining the shape effects. I viewed the page as a nifty demonstration of CSS-based patterns. Actually implementing the appropriate colors with these is left as an exercise for the reader.

[knieveltech]

According to my laptop's cooling fan color palette is the least of the issues here. I'm pretty sure that roasting your users' CPUs to render a background texture is considered poor form.

[saturdayplace]

I acknowledge the performance issues. I was responding, however, to a comment about what these make the site look like.

[dbrian]

What? I think you might have some issues there. These render instantly on my phone and on my Nexus tablet.