Show keys you typed on screen.
Updated to make clickable switch insensitive by default.
Updated to toggle click through with a switch.
Updated to allow user choose keyboard layout and variant.
Updated to use libadwaita.
Updated to remove device name from JSON. Updated to add keybinding for shift switch.
Use gtk4-update-icon-cache. Added switch to show shift separately.
Updated UI.
Updated debug output. Updated to only use GTK basic theme for SmtkKeysWin. Updated app settings handling to allow changing while working.