import java.util.HashSet;
+import jexer.backend.Screen;
import jexer.bits.Cell;
import jexer.bits.CellAttributes;
import jexer.bits.GraphicsChars;
import jexer.event.TMenuEvent;
import jexer.event.TMouseEvent;
import jexer.event.TResizeEvent;
-import jexer.io.Screen;
import jexer.menu.TMenu;
import static jexer.TCommand.*;
import static jexer.TKeypress.*;