Hey, thanks for the reply. I tested it in a new project and made more progress than previously: I at least got the window to show up, but the minimap never displayed inside the window. I've read over your instructions probably 3 or 4 times, and I am clueless as to what I could be doing wrong. I compiled this project for you to check. (The project is using the ImgMinimap, but I also tested it with TileMinimap)
https://drive.google.com/file/d/1MDpTkKxmkgwEUtI7DlYe3fIp4lHeIhjJ/view?usp=shari...