barbecue条码下的文字字体大小改为28

src/main/java/net/sourceforge/barbecue/Barcode.java

@@ -85,7 +85,7 @@ public abstract class Barcode extends JComponent implements Printable {
 		} else {
 			this.barHeight = Barcode.DEFAULT_BAR_HEIGHT;
 		}
-		this.font = new Font("Microsoft YaHei UI", Font.PLAIN, 12);
+		this.font = new Font("Microsoft YaHei UI", Font.PLAIN, 28);
 		this.drawingText = true;
 		setBackground(Color.white);
 		setForeground(Color.black);