How do I use lossy compression for spritesheets.

I am making an app for my physics students that, among other things, allows them to step through a video frame by frame. The video plugin doesn't appear well suited to this purpose. If I load the frames from the video into a sprite it works great except that the project is now huge.

Spritesheets by default are always lossless no matter what format the imported files have in the animation editor. Is there a way to tell C3 to allow them to be lossy?

It looks like I could probably hand convert export as webp lossless and then use third party software to lossy. Is there a better way?

does this work for you?

Yep, that was exactly it. I was assuming that was still the same image as file button back from the C2 days.

I'm using pngquant. I believe it works better than the built-in compressor and produces smaller files. Export the project and then run this command in the folder with images:

pngquant.exe --ext=.png --force --verbose --quality=45-85 *.png