I'm trying to make a progressbar plugin, and I'd like to give the option to have a textured background and "fill" (idk the proper UI/UX term), possibly with different images.
I know that I can add a projectfile plugin property for each optional image with a filter for PNGs, but that is just a drop down list of images in the project files, not the "Edit" button you see in Sprites or 9Patches etc...
To get such button, I know I have SetHasImage but it only adds a single editable texture.
So
Is there a way to have more than one? (I'm afraid it's gonna be a resounding no but I'm hopeful...)