In Godot it's possible to have elements contained in other elements (this is the case with the pause screen)
Viewing post in Update #5 - Characters, Ui and Godot project 4.0 comments
oh so thats how you got the inner border and made the background a different color. i think there is a background color missing. i might be able to make a python script so i can have 2 borders. i looked through all the 9pathrect files and all the files in the theme1 folder. i cant find any files with that background color so i thought you made it in asperite or something. i haven't learned godot yet though.
i just realized the corner is a different resolution. i guess there is something in godot that is built in that lets you generate corners like this? i am going to play around with it and see if i can make my own 9patchrect with the image.
there now it can be used as a 9patchrect! i made the dimensions 54 pixels for each corner
been slowly building my ui