diff -r 964e42c9448d -r 69c81bdaf193 javaquery/canvas/src/main/java/net/java/html/canvas/spi/GraphicsEnvironment.java
--- a/javaquery/canvas/src/main/java/net/java/html/canvas/spi/GraphicsEnvironment.java	Fri May 24 07:36:58 2013 +0200
+++ b/javaquery/canvas/src/main/java/net/java/html/canvas/spi/GraphicsEnvironment.java	Fri May 24 12:29:58 2013 +0200
@@ -22,6 +22,7 @@
 
 /**
  * Provider API for Canvas. Implement this to add support for your platform.
+ *
  * @author antonepple
  */
 public interface GraphicsEnvironment {
@@ -87,15 +88,32 @@
 ////
 ////    public void drawImage(ImageData image, double sx, double sy, double sWidth, double sHeight, double x, double y, double width, double height);
 //
-    public void setFillStyle(String style);
 
-    public String getFillStyle();
+    /**
+     * When implementing you can return an Object of your choice to enable
+     * caching. Returning null means no caching. When caching is enabled, and
+     * the cache hasn't been invalidated, the Object you returned will be passed
+     * as a parameter.
+     *
+     * @param style The style object you should use to create your native style
+     * @param nativeStyle your native object if cached, null otherwise
+     * @return return native Object for caching
+     *
+     */
+    public Object setFillStyle(Style style, Object nativeStyle);
 
-    public void setFillStyle(Style style);
-
-    public void setStrokeStyle(String style);
-
-    public void setStrokeStyle(Style style);
+    /**
+     * When implementing you can return an Object of your choice to enable
+     * caching. Returning null means no caching. When caching is enabled, and
+     * the cache hasn't been invalidated, the Object you returned will be passed
+     * as a parameter.
+     *
+     * @param style The style object you should use to create your native style
+     * @param nativeStyle your native object if cached, null otherwise
+     * @return return native Object for caching
+     *
+     */
+    public Object setStrokeStyle(Style style, Object nativeStyle);
 
     public void setShadowColor(String color);
 
@@ -105,8 +123,6 @@
 
     public void setShadowOffsetY(double y);
 
-    public String getStrokeStyle();
-
     public String getShadowColor();
 
     public double getShadowBlur();
@@ -162,7 +178,6 @@
 ////    public void putImageData(ImageData imageData, double x, double y);
 ////
 ////    public void putImageData(ImageData imageData, double x, double y, double dirtyx, double dirtyy, double dirtywidth, double dirtyheight);
-
     public void setGlobalAlpha(double alpha);
 
     public double getGlobalAlpha();
@@ -172,7 +187,6 @@
     public String getGlobalCompositeOperation();
 
 ////    public ImageData getImageForPath(String path);
-
     public int getHeight();
 
     public int getWidth();