NiftyCube

Surely you have seen those cool rounded corners everywhere on the web these days. Even drupal.org uses them. The difference is that drupal.org uses corner images to achieve the effect.

With NiftyCube you can create those cool rounded corners without the need to make corner images. This means you spend less time in photoshop, the viewer is not punished if he has images disabled, change colors on-the-fly without the need to create new corner images, among other advantages.

This module makes use of the NiftyCube javascript found here. This module also has NiftyLayout for those who want/need it.