X

xcb

A lightweight and configurable X window manager for Linux, based on libxcb.

System tray icon to display and set ALSA volume written in C and using XCB library. Similar to volumeicon, but with simpler, specifically made for ALSA and without GTK. No configuration files. No configuration windows.

xkeyboardicon is a little flag in systray to show current X11 keyboard layout. It was written in C and uses XCB library.