If you're growing tired of your default S60 user interface then perhaps you should add some warmth to your display with Glow Wave.
This eye-catching theme adds a glowing, orange and red background to your device. The wallpaper image also features very thin spiral lines, in the style of something you might create with a Spirograph. Glow Wave also replaces the default S60 clock with an analog sun-style timepiece.
Aside from the striking background image, Glow Wave adds little else in terms of new interface elements. Most of the standard S60 menu icons remain the same, and it adds no new functionality to any of the apps.
That said, Glow Wave does present a free way to apply a warming effect to your phone.