Attached is a port for PNG compressor that uses a lossy algorithm that I've found to be very effective.
The maintainer of this project mode a few modifications to make this project easier to build on OpenBSD (https://github.com/pornel/pngquant/issues/52) Tested on i386 and ppc. -- Eric Radman | http://eradman.com
pngquant_port.tar.gz
Description: application/tar-gz