diff --git a/vtm-playground/src/org/oscim/test/CircleTest.java b/vtm-playground/src/org/oscim/test/CircleTest.java
index 0adaf721..02b8cd45 100644
--- a/vtm-playground/src/org/oscim/test/CircleTest.java
+++ b/vtm-playground/src/org/oscim/test/CircleTest.java
@@ -59,7 +59,10 @@ public class CircleTest extends GdxMap {
 
         mMap.setMapPosition(0, 0, 1 << 4);
 
-        CircleStyle cs = new CircleStyle(30, false, 0xff00ff00, 0xffffffff, 2, 0);
+        CircleStyle cs = CircleStyle.builder()
+                .radius(30)
+                .color(0xff00ff00)
+                .build();
         CircleBucket cb = renderer.buckets.addCircleBucket(0, cs);
         addCircle(200, -200, cb);
         addCircle(-200, -200, cb);
diff --git a/vtm/src/org/oscim/renderer/bucket/CircleBucket.java b/vtm/src/org/oscim/renderer/bucket/CircleBucket.java
index 5ff6af1a..4f68a369 100644
--- a/vtm/src/org/oscim/renderer/bucket/CircleBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/CircleBucket.java
@@ -100,7 +100,7 @@ public class CircleBucket extends RenderBucket {
             for (; b != null && b.type == CIRCLE; b = b.next) {
                 CircleBucket cb = (CircleBucket) b;
 
-                GLUtils.setColor(s.uColor, cb.circle.fill, 1);
+                GLUtils.setColor(s.uColor, cb.circle.fillColor, 1);
                 gl.uniform1f(s.uScale, cb.circle.radius);
 
                 gl.vertexAttribPointer(s.aPos, 2, GL.SHORT,
diff --git a/vtm/src/org/oscim/theme/XmlThemeBuilder.java b/vtm/src/org/oscim/theme/XmlThemeBuilder.java
index d21d6ec8..1c4f7190 100644
--- a/vtm/src/org/oscim/theme/XmlThemeBuilder.java
+++ b/vtm/src/org/oscim/theme/XmlThemeBuilder.java
@@ -901,7 +901,7 @@ public class XmlThemeBuilder extends DefaultHandler {
      */
     private CircleStyle createCircle(String elementName, Attributes attributes, int level) {
         String cat = null;
-        Float radius = null;
+        float radius = 0;
         boolean scaleRadius = false;
         int fill = Color.TRANSPARENT;
         int stroke = Color.TRANSPARENT;
diff --git a/vtm/src/org/oscim/theme/styles/CircleStyle.java b/vtm/src/org/oscim/theme/styles/CircleStyle.java
index dc3b0b05..d53ce64c 100644
--- a/vtm/src/org/oscim/theme/styles/CircleStyle.java
+++ b/vtm/src/org/oscim/theme/styles/CircleStyle.java
@@ -18,40 +18,97 @@
  */
 package org.oscim.theme.styles;
 
+import org.oscim.backend.canvas.Color;
+
 /**
  * Represents a round area on the map.
  */
 public final class CircleStyle extends RenderStyle<CircleStyle> {
 
+    public final int fillColor;
     public final int level;
-
-    public final int fill;
-    public final int outline;
     public final float radius;
     public final boolean scaleRadius;
+    public final int strokeColor;
     public final float strokeWidth;
 
-    public CircleStyle(float radius, boolean scaleRadius, int fill, int stroke,
+    public CircleStyle(float radius, boolean scaleRadius, int fillColor, int strokeColor,
                        float strokeWidth, int level) {
-        super();
-
         this.radius = radius;
         this.scaleRadius = scaleRadius;
-
-        this.fill = fill;
-        this.outline = stroke;
-
+        this.fillColor = fillColor;
+        this.strokeColor = strokeColor;
         this.strokeWidth = strokeWidth;
         this.level = level;
     }
 
+    public CircleStyle(CircleStyle.CircleBuilder<?> b) {
+        this.radius = b.radius;
+        this.scaleRadius = b.scaleRadius;
+        this.fillColor = b.fillColor;
+        this.strokeColor = b.strokeColor;
+        this.strokeWidth = b.strokeWidth;
+        this.level = b.level;
+    }
+
+    @Override
+    public CircleStyle current() {
+        return (CircleStyle) mCurrent;
+    }
+
     @Override
     public void renderNode(Callback cb) {
         cb.renderCircle(this, this.level);
     }
 
-    @Override
-    public CircleStyle current() {
-        return (CircleStyle) mCurrent;
+    public static class CircleBuilder<T extends CircleStyle.CircleBuilder<T>> extends StyleBuilder<T> {
+
+        public float radius;
+        public boolean scaleRadius;
+
+        public CircleBuilder() {
+        }
+
+        public T set(CircleStyle circle) {
+            if (circle == null)
+                return reset();
+
+            this.radius = circle.radius;
+            this.scaleRadius = circle.scaleRadius;
+            this.fillColor = circle.fillColor;
+            this.strokeColor = circle.strokeColor;
+            this.strokeWidth = circle.strokeWidth;
+            this.level = circle.level;
+
+            return self();
+        }
+
+        public T radius(float radius) {
+            this.radius = radius;
+            return self();
+        }
+
+        public T scaleRadius(boolean scaleRadius) {
+            this.scaleRadius = scaleRadius;
+            return self();
+        }
+
+        public T reset() {
+            radius = 0;
+            scaleRadius = false;
+            fillColor = Color.TRANSPARENT;
+            strokeColor = Color.TRANSPARENT;
+            strokeWidth = 0;
+            return self();
+        }
+
+        public CircleStyle build() {
+            return new CircleStyle(this);
+        }
+    }
+
+    @SuppressWarnings("rawtypes")
+    public static CircleStyle.CircleBuilder<?> builder() {
+        return new CircleStyle.CircleBuilder<>();
     }
 }