pane->canvas->set_inverse();
pane->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, pane->canvas->get_h());
pane->canvas->set_opaque();
pane->canvas->set_inverse();
pane->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, pane->canvas->get_h());
pane->canvas->set_opaque();