libxsettings-dev 0.11-4 (amd64 binary) in ubuntu cosmic

 Provides a mechanism to allow the configuration of settings such as double
 click timeout, drag-and-drop threshold, and default foreground and
 background colors for all applications running within a desktop.
 .
 This package contains the development files for building applications
 using libxsettings.
 .
 Used by the GPE Palmtop Environment.