This is xfwm4 theme.
Unfortunately my work is not original.
So this is just what I was missing in Orion xfwm theme namely buttons Lyon
I just combine them. And added code for thunar in orion gtk-2 theme
Used the following work:
- buttons : Adwaita+Cupertino [link]
- Orion theme : [link]
5.10.12 - fixed xfwm theme
29.09.12 - reduced rounding the corners, more like a Orion, add panel to /gtk-2.0/img, add xfce-notify-theme