[cairo] Mac Tiger Core Image

[mental at rydia.net]

Quoting mental at rydia.net:

>  2. dilate all shapes slightly before rendering so they overlap
> sufficiently to eliminate fringing [ this is the approach taken
> by the AntiGrain Geometry library ]

Speaking of which, it turns out the AntiGrain folks have a page with
sample images that illustrate the problem I'm talking about "in the
wild":

http://www.antigrain.com/svg/index.html

-mental