Add better debugPaint on Align Widget

 # Changelog
 
+## 1.3.16
+
+* Add better debugPaint on Align Widget
+
 ## 1.3.15
 
 * Fix Image shape inside BoxDecoration

@@ -38,6 +38,9 @@ class PdfRect {
   double get right => x + width;
   double get top => y + height;
 
+  double get horizondalCenter => x + width / 2;
+  double get verticalCenter => y + height / 2;
+
   @deprecated
   double get l => left;
   @deprecated

@@ -257,6 +257,82 @@ class Align extends SingleChildWidget {
   }
 
   @override
+  void debugPaint(Context context) {
+    context.canvas
+      ..setStrokeColor(PdfColors.green)
+      ..drawRect(box.x, box.y, box.width, box.height);
+
+    if (child == null) {
+      context.canvas.strokePath();
+      return;
+    }
+
+    if (child.box.bottom > box.bottom) {
+      final double headSize =
+          math.min((child.box.bottom - box.bottom) * 0.2, 10);
+      context.canvas
+        ..moveTo(
+          box.left + child.box.horizondalCenter,
+          box.bottom,
+        )
+        ..lineTo(box.left + child.box.horizondalCenter,
+            box.bottom + child.box.bottom)
+        ..lineTo(box.left + child.box.horizondalCenter - headSize,
+            box.bottom + child.box.bottom - headSize)
+        ..moveTo(box.left + child.box.horizondalCenter,
+            box.bottom + child.box.bottom)
+        ..lineTo(box.left + child.box.horizondalCenter + headSize,
+            box.bottom + child.box.bottom - headSize);
+    }
+
+    if (box.bottom + child.box.top < box.top) {
+      final double headSize =
+          math.min((box.top - child.box.top - box.bottom) * 0.2, 10);
+      context.canvas
+        ..moveTo(box.left + child.box.horizondalCenter, box.top)
+        ..lineTo(
+            box.left + child.box.horizondalCenter, box.bottom + child.box.top)
+        ..lineTo(box.left + child.box.horizondalCenter - headSize,
+            box.bottom + child.box.top + headSize)
+        ..moveTo(
+            box.left + child.box.horizondalCenter, box.bottom + child.box.top)
+        ..lineTo(box.left + child.box.horizondalCenter + headSize,
+            box.bottom + child.box.top + headSize);
+    }
+
+    if (child.box.left > box.left) {
+      final double headSize = math.min((child.box.left - box.left) * 0.2, 10);
+      context.canvas
+        ..moveTo(box.left, box.bottom + child.box.verticalCenter)
+        ..lineTo(
+            box.left + child.box.left, box.bottom + child.box.verticalCenter)
+        ..lineTo(box.left + child.box.left - headSize,
+            box.bottom + child.box.verticalCenter - headSize)
+        ..moveTo(
+            box.left + child.box.left, box.bottom + child.box.verticalCenter)
+        ..lineTo(box.left + child.box.left - headSize,
+            box.bottom + child.box.verticalCenter + headSize);
+    }
+
+    if (box.left + child.box.right < box.right) {
+      final double headSize =
+          math.min((box.right - child.box.right - box.left) * 0.2, 10);
+      context.canvas
+        ..moveTo(box.right, box.bottom + child.box.verticalCenter)
+        ..lineTo(
+            box.left + child.box.right, box.bottom + child.box.verticalCenter)
+        ..lineTo(box.left + child.box.right + headSize,
+            box.bottom + child.box.verticalCenter - headSize)
+        ..moveTo(
+            box.left + child.box.right, box.bottom + child.box.verticalCenter)
+        ..lineTo(box.left + child.box.right + headSize,
+            box.bottom + child.box.verticalCenter + headSize);
+    }
+
+    context.canvas.strokePath();
+  }
+
+  @override
   void paint(Context context) {
     super.paint(context);
     paintChild(context);

@@ -4,7 +4,7 @@ description: A pdf producer for Dart. It can create pdf files for both web or fl
 homepage: https://github.com/DavBfr/dart_pdf/tree/master/pdf
 repository: https://github.com/DavBfr/dart_pdf
 issue_tracker: https://github.com/DavBfr/dart_pdf/issues
-version: 1.3.15
+version: 1.3.16
 
 environment:
   sdk: ">=2.1.0 <3.0.0"

@@ -28,7 +28,7 @@ void main() {
     pdf = Document();
   });
 
-  test('Basic Widgets Align', () {
+  test('Basic Widgets Align 1', () {
     pdf.addPage(Page(
         build: (Context context) => Align(
               alignment: Alignment.bottomRight,
@@ -36,6 +36,14 @@ void main() {
             )));
   });
 
+  test('Basic Widgets Align 2', () {
+    pdf.addPage(Page(
+        build: (Context context) => Align(
+              alignment: const Alignment(0.8, 0.2),
+              child: SizedBox(width: 100, height: 100, child: PdfLogo()),
+            )));
+  });
+
   test('Basic Widgets AspectRatio', () {
     pdf.addPage(Page(
         build: (Context context) => AspectRatio(