Description
Graphical applications can communicate with X11 displays through the core client protocol library.
This package is a foundational dependency for X11 desktop software, toolkits, window utilities, and applications that need to create windows or talk to an X server. It does not add a desktop app by itself; other programs load it for graphical display support.
X11 allows broad interaction between clients compared with newer display systems. Use trusted applications, especially when sensitive windows or input are involved.