Hi, I'm sorry if this sounds dumb I'm a complete noob with RPG Maker MZ. I did research on google but fond nothing about my issue.
Once walls are imported in tilessets (screenshot 1) I can build the black and white "outline" of the room but I can't add "inside" wall with just the white border and some wall painting like in your screenshot.
If I create a border then add a painting it erase the border (screenshot 2).
I did something with white border from another tilesets (screenshot 3) but it's not really as revelant.
