Block a user
App::window_resizable() so a window_size_hint can declare a permanently fixed-size toplevel
App::subsurface_motion_only so a slide-to-reveal panel animates without re-rastering the main surface
App::window_resizable() so a window_size_hint can declare a permanently fixed-size toplevel
App::subsurface_motion_only so a slide-to-reveal panel animates without re-rastering the main surface