ui_rect null;
ui_rect screen = { 0, 0, vg.window_x, vg.window_y };
ui_rect panel = { 0, 0, 1000, 700 };
ui_rect_center( screen, panel );
ui_rect null;
ui_rect screen = { 0, 0, vg.window_x, vg.window_y };
ui_rect panel = { 0, 0, 1000, 700 };
ui_rect_center( screen, panel );