Fun with cellular automata in Squeak. Best use version 6.0.

For example:

CAAutomaton new
	ruleNo: 30;
	width: 299;
	generations: 149;
	runAndOpen

Use runAndSave to save the result as a PNG file (its name will be the current Unix time stamp).

Please find configuration setters in the building category of CAAutomaton.

Licence: friendly and non-contagious MIT.