Use the editor theme for the embedded game window PopupMenu

[Wolve-3DTech]

Describe the project you are working on

I'm currently working on a 2d platformer game.

Describe the problem or limitation you are having in your project

I've remarked that in that popup menu, the font just looks terrible ...

Describe the feature / enhancement and how it helps to overcome the problem or limitation

As Godot 4.4 beta-1 just got released, with the ability to embed the game view in editor, which is more than welcome :D , I think it would be good to improve the appearance and the quality of the Popup menu, especially the font, to make it more readable, as shown in this video :

pop_up_poor_quality.mp4

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

None

If this enhancement will not be used often, can it be worked around with a few lines of script?

None

Is there a reason why this should be core and not an add-on in the asset library?

This feature improvement is about enhancing user experience while using embedded game window.

[sockeye-d]

Does this happen when the game is not embedded?

[Wolve-3DTech]

Yeah, even when it's not embedded :
I'm using a 75Hz 1920x1080 screen, if it can help

popup_poor_quality_2.mp4