Contents The Fluxbox package contains fluxbox, bsetbg and bsetroot. Description fluxbox fluxbox is a window manager for X11 based on Blackbox 0.61.0. bsetbg bsetbg is a utility that sets the background image. It needs display, Esetroot, wmsetbg, xv, qiv or xsri to be used. bsetroot bsetroot is a Blackbox utility to change root window appearance.