Wrong padding of dropdown menu icons in Editor

[bitbotzgames]

Godot version

v3.6 beta3 official

System information

Windows 10, OpenGL ES 3.0 Renderer

Issue description

All icons in dropdown menus in the Editor are having wrong padding.

Here you see the file menu when rightclicking a file in the FileSystem (v3.6 beta3):

In Godot 3.5.3 the icons were still fine:

Steps to reproduce

Open the v3.6 beta3 official Editor and open a menu with icons in it.

Minimal reproduction project

Only the Editor is needed for testing

[Calinou]

I can confirm this on 3.6.beta1 and later. I'll look into bisecting this.

Edit: I bisected the regression to 6a5992c (#66711). cc @EricEzaM @rsubtil

[Calinou]

If this was reported in 3.6.beta3 why is the milestone set to 4.x?

Fixed.

[rsubtil]

This was fixed by #81409