Package: xfwm4

"xfwm4" package binaries on CentOS:

/usr/bin/xfwm4 /usr/bin/xfwm4-settings /usr/bin/xfwm4-tweaks-settings /usr/bin/xfwm4-workspace-settings

You may install this package on CentOS with yum install xfwm4

"xfwm4" package binaries on Debian:

/usr/bin/xfwm4 /usr/bin/xfwm4-settings /usr/bin/xfwm4-tweaks-settings /usr/bin/xfwm4-workspace-settings

You may install this package on Debian with apt-get install xfwm4