StyleBox inconsistencies - referred to as both "style_box" and "stylebox"

[FireCatMagic]

Tested versions

All

System information

N/A

Issue description

To start I'll show this single line:

draw_style_box(get_theme_stylebox(SN_STYLEBOX_PLUS), plus_rect);

Here you can see in draw_style_box the StyleBox is referred to as style_box while in get_theme_stylebox it is stylebox, missing an underscore.

In some places, variables that use StyleBox call it style_box while others call it stylebox. The class StyleBox has Box uppercase, so I think style_box makes more sense.
This isn't a major issue, this is just a thing I noticed that could be adjusted later for consistency. (or rename & deprecate functions or something)

Steps to reproduce

N/A

Minimal reproduction project (MRP)

N/A