How to make plugin popup look native

Godot Version

4.3 beta 3

Question

I am attempting to make a plugin which adds a mesh combination tool window. By default though, the editor seems to only use some of the Godot Theme for the windows visuals. How can I make this window look like it’s native to the Engine?
Here a screenshot

Figured it out on my own. You are able to get some editor specific data like the theme color and styleboxes by calling certain global methods. I highly recommend using the Editor Theme Explorer for this.