Emerald Theme Manager is described as 'The Emerald Theme Manager allows you to install, edit and switch between Emerald themes. In order for it to work, select Emerald as your window decorator. You will also need to enable the Window Decorations plugin (via CCSM)' and is a Window Manager in the os & utilities category. There are more than 50 alternatives to Emerald Theme Manager for a variety of platforms, including Linux, BSD, Wayland, Mac and Windows apps. The best Emerald Theme Manager alternative is Hyprland, which is both free and Open Source. Other great apps like Emerald Theme Manager are niri, Sway, i3 and Openbox.
Cage is a kiosk compositor for Wayland. A kiosk is a window manager (in the X11 world) or compositor (in the Wayland world) that is designed for a user experience wherein user interaction and activities outside the scope of the running application are prevented.
PaperWM is an experimental Gnome Shell extension providing scrollable tiling of windows and per monitor workspaces. It's inspired by paper notebooks and tiling window managers. Supports Gnome Shell 3.28 and 3.30 on X11 and wayland.
Mahogany is a tiling window manager for Wayland modeled after StumpWM. While it is not a drop-in replacement for StumpWM, StumpWM users should be very comfortable with Mahogany. Its planned features are:
