StyleBoxTexture Draws Above Button

[rakkarage]

Godot version:
3.2.1
OS/device including version:
Windows 10
Issue description:
Focus draw on top of button? I need it under?
Steps to reproduce:

how to make the focus draw below the button?
or how can i make a focus for this theme?
it must draw around both up and down buttons
in my case my up button has a different shape then the down button?
so the focus passes through the top and shadow on sides
is there some way to make it draw the focus below? or

i tried stamping the button image onto the focus but the button can be tinted but i could tint focus too?
i could use a script to change the focus image when pressed or not? but you cannot use scripts in themes anyway it would fix one button and leave theme looking messed? idk
The tabs control has a bg and fg styleTextureBox maybe the focus could have both two?
it seems like all my problems would be solved if i could traw focus under the rest

thanks

Minimal (NOT) reproduction project:
https://bitbucket.org/henrysoftware/pixelinterface/

[Calinou]

This was documented in #42579, closing. See also #42322 and godotengine/godot-proposals#2011.