Remove medium size images

[Hatshepsut]

Hello,

I'm using SMF Gallery Pro on my SMF 2.1 forum since 2019
I have enabled "Generate medium size images" option, but noticed that these images are PNGs and take large disk space, so I don't want to use them anymore.

In Gallery admin settings, I already have "Generate medium size images" option unchecked, but all medium-size images persist in gallery folder. Now I should remove them one-by-one, and that's more than 3,000 images.

Is it possible to add some maintenance setting to remove medium-size images at once? And if someone wants to use them again, to be rebuilded?

[SMFHacks]

It would be a feature request for sure but something I will keep in mind.

[mickjav]

Would it be possible to save these images in a smaller format??