pre rfc draft on rendering

[Steve Lime]

> with markers you don't get the symbol to bend on curves, and you don't
> get the nice joins between each symbol. see
> http://www.antigrain.com/articles/line_patterns.gif for an example of
> what you can get with that approach. maybe "brushing" isn't the
> correct word, but I'd definitely keep this.

By all means, keep this. It's one of the features I liked about AGG from the
beginning. It's just that it's not a brush in GD speak. Brushes beyond just a
circle are mostly useless. 

Steve