path: root/.config/gtk-3.0/gtk.css

/* No (default) titlebar on wayland */
headerbar.titlebar.default-decoration {
  background: transparent;
  padding: 0;
  margin: 0 0 -27px 0;
  border: 0;
  min-height: 0;
  font-size: 0;
  box-shadow: none;
}

/* rm -rf window shadows */
window.csd,             /* gtk4? */
window.csd decoration { /* gtk3 */
  box-shadow: none;
}