Xfce is not a single large application, but composed of many small applications that work together. Appearance is a separate appliction from xfwm4, and controls different elements. Xfce developers have chosen not to integrate these different components because that does allow greater flexibility when deciding which components to use.
Xfce is not a single large application, but composed of many small applications that work together. Appearance is a separate appliction from xfwm4, and controls different elements. Xfce developers have chosen not to integrate these different components because that does allow greater flexibility when deciding which components to use.