make a png-image type instead of having a singleton class
make a png-image type instead of having a singleton class

bjourne/factor,slavapestov/factor,mrjbq7/factor,mrjbq7/factor,slavapestov/factor,bjourne/factor,slavapestov/factor,slavapestov/factor,bjourne/factor,mrjbq7/factor,bpollack/factor,tgunr/factor,AlexIljin/factor,tgunr/factor,sarvex/factor-lang,nicolas-p/factor,bpollack/factor,dch/factor,bpollack/factor,AlexIljin/factor,bjourne/factor,sarvex/factor-lang,tgunr/factor,factor/factor,AlexIljin/factor,sarvex/factor-lang,slavapestov/factor,nicolas-p/factor,sarvex/factor-lang,mrjbq7/factor,tgunr/factor,AlexIljin/factor,bjourne/factor,dch/factor,mrjbq7/factor,mrjbq7/factor,slavapestov/factor,tgunr/factor,nicolas-p/factor,bpollack/factor,dch/factor,sarvex/factor-lang,bpollack/factor,dch/factor,dch/factor,sarvex/factor-lang,AlexIljin/factor,bjourne/factor,AlexIljin/factor,slavapestov/factor,nicolas-p/factor,AlexIljin/factor,nicolas-p/factor,factor/factor,tgunr/factor,bjourne/factor,nicolas-p/factor,factor/factor,dch/factor,factor/factor,bpollack/factor,nicolas-p/factor,factor/factor,bpollack/factor,sarvex/factor-lang,factor/factor