Jackson Pollock and Fractals

Jackson Pollock was an artist who used his unique style to create patterns. To get an idea there’s even a Flash game where you can use his painting style. Sometime ago I read that it is possible to analyze his artwork via fractals (fractals are weird things with dimensions like d=1.825) and tell when he created a certain artwork. It was said that the patterns got more chaotic the older Jackson was. But I learned from Physics Buzz that this is not the case.