I’ve recently releases a simple library for Processing: https://github.com/orgicus/image-sequence-player
It’s very very similar to gifAnimation, instead it loads an image sequence and plays it back.
This is handy if you want more colours and better quality transparency than the gif format can offer and need frame based control (as opposed to video keyframes).
It was useful for many LED panel projects at Hirsch & Mann
and hope you find it useful too.
I’m open to feedback/suggestions.
If you have any tips on submitting the library to the Contribution Manager, more than happy to hear from you.