There is no plugin for that as far as I know. The best solution for this would simply be to convert your pngs to gifs somewhere online, you have a lot of converters, and also bulk converters that may help you. Try this one
I hope this helps.
There is no plugin for that as far as I know. The best solution for this would simply be to convert your pngs to gifs somewhere online, you have a lot of converters, and also bulk converters that may help you. Try this one
I hope this helps.