Non-parent window not accepting transparency

Question

I'm trying to get both the parent window and child window transparent so I can implement a separate titlebar system for my game, along with some other gimmicks;

However, as shown in the image, the background transparency is not accepted even though I have set both the parent and child window property to be transparent, along with display/window/per_pixel_transparency/allowed, display/window/size/transparent, and rendering/viewport/transparent_background to the right values. How do I get these working?

Godot version: v4.1.1.stable.official [bd6af8e0e]

Rockingham

Answer 1

Did you check the Project Settings? There's a setting in there that can affect this. Link below:

The Docs are your friend (sometimes)

Specifically:
This property has no effect if either ProjectSettings.display/window/per_pixel_transparency/allowed, or the window's Viewport.transparent_bg is set to false.

Twickenham

Answer 2

Yes, I did check the mentioned settings as I said in the post. The window is transparent for the first half second as it fades in (when the project starts) but quickly becomes opaque after even using the transparent_bg property.

Rockingham

Answer 3

The window is transparent for the first half second as it fades in (when the project starts) but quickly becomes opaque

This is probably a stupid question, but does your window manager's compositor normally fade windows in when opening them?

Jacobine