wumpus-core

Copperbox revision 1670.

I've added support for bordered paths - closed paths that are drawn with a background fill colour and a foreground stroked border. Most of the code to do this was in the last release, but I couldn't think of a name - bordered is unremarkable, but it only occurred to me yesterday - so I left out a full implementation.

SVG can draw bordered paths with one path element - this can be quite an efficiency saving for some elements e.g. bordered dots. Previously Wumpus drew them with two operations.