Freestyle is a colorful, tableless, two column layout. Freestyle's skate/punk motif uses pink and yellow neon spray paint as a graffiti backdrop for a blocky stencil-like typeface. It has nice positive and negative space usage and some subtle torn edge styling. It almost reminds you of that friend who screen printed flyers for your band's first show back in the 90's.
The Freestyle theme for Drupal is a conversion of an original HTML template by Tony Pires. A write up on how to convert HTML templates into Drupal 6 themes can be found at Drupaltherapy.