New stuff in Drupal 6 theming

This is a Wednesday evening lesson at 7pm PST (2am UTC)
MerlinOfChaos presents his What's New In Drupal 6 Theming. The same talk as he presented in Barcelona, only this time, Dvessel joins him in a tag-team presentation of graphical proportions! Merlin has a slideshow, or so we're heard, that rivals Eaton's FAPI3 slides. This oughtta be good!

There's a great flowchart on how themes are rendered by D6: http://drupal.org/files/theme_flow_6_0.pdf

Here's a theme made entirely from css. The designer used no template.php functions and no page.tpl.php php code.