all at a single point. almost instantly, expanding into scratches, eddies and
snipets of layout algorithms. gradually reshaping, drawn with puctiform
convergence. what did those Z'zus have hidden in their cupboard?
fixed various problems with the graph traversal, and colouring. included a modified
version of the graph library from MrLib, to expose internal structs and provide new
possibilites for breaking things. keyboard commands are now prefixed by the control-key.