y += mask_center->get_h() + 2*margin;
add_subwindow(title_bar = new BC_TitleBar(x, y, get_w()-2*x, 20, 10, _("Fade & Feather")));
y += title_bar->get_h() + 2*margin;
y += mask_center->get_h() + 2*margin;
add_subwindow(title_bar = new BC_TitleBar(x, y, get_w()-2*x, 20, 10, _("Fade & Feather")));
y += title_bar->get_h() + 2*margin;