context.draw_surface(arrow_scrolldown,
Vector( x1 + width - arrow_scrolldown->get_width(), // bottom-light corner of box
y1 + height - arrow_scrolldown->get_height()),
context.draw_surface(arrow_scrolldown,
Vector( x1 + width - arrow_scrolldown->get_width(), // bottom-light corner of box
y1 + height - arrow_scrolldown->get_height()),