The Nitrogen window decoration is a fork of the Oxygen/Ozone decoration that allows notably to

- resize window borders,
- change buttons size,
- hide the horizontal separator.
- select different title bar blending and frame border size depending on the window title or name, in order to have better integration of GTK based windows in the decoration style.
- add a size-grip handle in the bottom-right corner of windows. This is particularly useful when the no-border option is selected.