I should add that the Oxygen style engine also enables a "drag windows from empty areas" behavior by default, which comes in handy in this context (e.g. you can drag that window from the empty space to the left of the menu bar items or the status bar and similar, although Alt+Drag works anywhere in the window anyway of course).
Gräßlin: Client Side Window Decorations and Wayland
Posted Feb 9, 2013 10:41 UTC (Sat) by mgraesslin (subscriber, #78959)
[Link]
and if you use the option "No Side Border" or "No Border" a resize overlay is added (since 4.10), so that you can still resize the window without needing a resize button. Of course Alt+RMB also works.