How to change button theme details in gdscript?

Help
,
1

Godot Version

4.3

Question

I have a button that I want to make more interesting by changing the look (so changing the background color, text color, text size etc)

I know I can change the color of the button via

var button_stylebox = $Button.get_theme_stylebox("normal")
button_stylebox.bg_color = Color.RED

but I cannot figure out how to change the other attributes, like font size, font color etc. Can someone help?