-void Root::button_press_event(int x, int y, unsigned btn, unsigned)
+void Root::render() const
+{
+ GL::MatrixStack::projection() = GL::Matrix::ortho_bottomleft(geom.w, geom.h);
+ GL::MatrixStack::modelview() = GL::Matrix();
+ GL::Bind bind_blend(GL::Blend::alpha());
+
+ Widget::render();
+}
+
+void Root::button_press_event(int x, int y, unsigned btn, unsigned mod)