play/pause Button fix

src/ui/view/TimePanel.java

@@ -46,6 +46,8 @@ public class TimePanel extends JPanel {
 				timeSlider.setValue(timeSlider.getValue() + 1);
 				if (timeSlider.getValue() == model.getIterations()) {
 					running = false;
+					playBtn.setIcon(new ImageIcon(new ImageIcon(this.getClass().getResource("/Button_Images/play.png")).getImage()
+							.getScaledInstance(30, 30, Image.SCALE_SMOOTH)));
 					timer.stop();
 				}
 			}