The logo was usually presented in a circle pattern, such as the one that was used from 2005 to 2007.
A later example of the circle patterns from New Year's Day 2007.
Red logo, used during winter.
Green logo, used during spring.
Blue logo, used during summer.
Orange logo, used during autumn.
On-screen bug (2005-2008). Between 2008 and 2009 the circles were used as a on screen bug (gray color).