Window toolbar icon spacing and sizes and show desktop icon size of budgie panel

[mgrouch]

The code of Show Desktop Applet is

https://github.com/BuddiesOfBudgie/budgie-desktop/blob/main/src/panel/applets/show-desktop/ShowDesktopApplet.vala

It uses user-desktop-symbolic and button icon size of Gtk Theme. So it’s controlled by Gtk Theme. Can be customized by gtk.css

[mgrouch]

And the icons for window toolbar are in window manager theme. Window manager is openbox. The theme is Natura.

/usr/share/themes/Natura/openbox-3/