diff --git a/src/main/java/shape/App.java b/src/main/java/shape/App.java
index 1a519e1401fe032f06aeee35967a27e48ca362fe..ebeb608d4ed947314c8778214441cd9f2ad01546 100644
--- a/src/main/java/shape/App.java
+++ b/src/main/java/shape/App.java
@@ -10,6 +10,7 @@ import javafx.scene.paint.Color;
 import javafx.scene.paint.Paint;
 import javafx.stage.Stage;
 
+import java.util.Arrays;
 
 
 public class App extends Application {
@@ -21,10 +22,20 @@ public class App extends Application {
     @Override
     public void start(Stage primaryStage) {
         Group root = new Group();
-        Canvas canvas = new Canvas(130, 110);
+        Canvas canvas = new Canvas(400, 400);
         GraphicsContext graphicsContext = canvas.getGraphicsContext2D();
         ShapeContainer shapeContainer = new ShapeContainer();
+
         graphicsContext.setFill(Color.AQUAMARINE);
+        graphicsContext.fillRect(0, 0, canvas.getWidth(), canvas.getHeight());
+
+        Polygon triangle = new Polygon(Color.RED, Arrays.asList(
+                new Point2D(100, 50),
+                new Point2D(150, 150),
+                new Point2D(50, 150)
+        ));
+
+
         graphicsContext.fillOval(10,10,10,10);
         shapeContainer.addShape(new Rectangle(Color.BLUE,new Point2D(10,10), new Point2D(40,40)));
         shapeContainer.draw(graphicsContext);