xsettingsd is a daemon that implements the XSETTINGS specification.

It is intended to be small, fast, and minimally dependent on other libraries. It can serve as an alternative to gnome-settings-daemon for users who are not using the GNOME desktop environment but who still run GTK+ applications and want to configure things such as themes, font antialiasing/hinting, and UI sound effects.

The source code is available at GitHub and can be fetched by running:

git clone git://github.com/derat/xsettingsd.git 

For more information about using xsettingsd, see the Installation page.