How do I make a Control cover the entire screen regardless of window size

Godot Version

4.3

Question

Why when i set a Control to full rect in only expands to the bottom and the right of the screen when i resize my window. The Control that is scaling is the black transparent panel on top of the game. The gray on the side and top is the place the full rect panel is not expanding to. I have understood that full rect means cover the entire screen. Have I understood wrong


What are your Stretch settings in Project Settings > Display > Window?
Try to set Mode to canvas_items and Aspect to expand.

I’ve already set those settings and the outcome is that. Only way I have found to make Panels fit the entire screen is to have those settings and add them as a child of a canvas layer node. But then it makes it extremely clunky and hard to manage the ordering of them.

The rest of the UI is doing exactly what is want which is scale and stay in the middle of the screen. I don’t want the background panel to do that I want it to scale to the entire size of the screen but I can’t seem to find a good way to do that.