Why Does TiledBackground Support Unique Textures per Instance, but Sprite Doesn't?

How is it that you can load different images into multiple instances of the same TiledBackground object, and they each display their own image? But with a Sprite, loading a new image replaces it in all other instances.

Does each TiledBackground instance have its own texture?

Initially all the tiledbg instances share the same texture from the type. They could very well have made loading another texture replace the texture of the type instead of just the instance.

With sprites the type has the animations attached to it so basically all the instances share the same list of animations. So when loading an image it is simplest to just replace the image in the animation which affects all instances. Only replacing an image in the animation for just one instance would be much harder to do. Probably would require duplication of the animations per instance but not the textures.

It does seem tricky to implement. My first thought would be a tick box on a Sprite's properties to change whether it does what it currently does with load url, or use new method of unique images (thus ALL instances either have the old way or the new way), but I assume that's not ideal as it's a "global" setting, not per instance.

Thankfully we do have dynamic animations to fill the gap, although few bits needed to fully fill the gap, such as setting origin point or image points at runtime and such - iirc if you had origin point at mid, and then load url, it keeps origin at mid, which could be desirable.

Definitely something I'd love to see, very interested in anything allowing "modding" support, such as loading external images.