Style flairs you can do with core2 CSS classes

Style wide

 * Have a different background image for each different page type (page type classes)

Recent or Reading page

 * Make different styles for posts from personal journals, communities, or feeds on the reading page (journal type for entry)
 * Make different styles for posts with different access levels. (, ,   or
 * Highlight NSFW or age restricted  content.

Comments

 * Highlight comments from the user who made the post (.entry-author)