Or do you have to import pictures of your own. I really liked the built in painter in hypercard :/
Unfortunately, it doesn't have a sprite designer painter, so sprites need to be read in from image files.
The
Aquarium demo project covers this.
HN v1.x used to have a built in Back paint program. It was similar to Hypercard's, where one could create back pictures and assign them to multiple cards. Actually the code and objects are still mostly there, just aren't used, can't recall why. HN's code still reads in back objects so needs the Back painter module converting/reactivating. I'll look into this as it was a really nice feature.