this theme is inspired by the appearance of the GDM3 login manager, the main goal of this theme is to make Gnome Shell fully transparent. This means a panel that blends right into the desktop, simple flat, transparent buttons, and the bare minimum when it comes to menus and elements that overlap the work-space. This theme is compatible with Gnome Shell 3.24/3.22/3.20/3.18/3.16 and 3.14 versions, you need to enable user-themes extension in Gnome-Tweak-Tool to change Shell theme.