Ok, so I was working on trying to provide a consistent implementation of colors & backgrounds for http://drupal.org/node/639368#comment-3211194
Tried to address this with dblog but found it very annoying.
What are the colors being used and what are they supposed to indicate? Why are the only changing the color in the date column?
The implementation is just very hard to theme with CSS. As people want to set up their own admin themes, this is going to be an increasingly important issue.
The html produced by dblog needs to be more themable.