diff --git a/apps/toys/Hello/src/main/java/hello/HelloHighContrast.java b/apps/toys/Hello/src/main/java/hello/HelloHighContrast.java
new file mode 100644
--- /dev/null
+++ b/apps/toys/Hello/src/main/java/hello/HelloHighContrast.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package hello;
+
+import com.sun.javafx.css.StyleManager;
+import javafx.application.Application;
+import javafx.geometry.Insets;
+import javafx.scene.Scene;
+import javafx.scene.control.ToggleButton;
+import javafx.scene.control.ToggleGroup;
+import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
+
+public class HelloHighContrast extends Application {
+
+    private static final String MODENA_PATH = "com/sun/javafx/scene/control/skin/modena/";
+    private String lastStyleUsed = null;
+
+    public static void main(String[] args) {
+        Application.launch(args);
+    }
+
+    @Override public void start(Stage stage) {
+        final ToggleGroup group = new ToggleGroup();
+        group.selectedToggleProperty().addListener(ov -> {
+            // remove old style
+            if (lastStyleUsed != null) {
+                StyleManager.getInstance().removeUserAgentStylesheet(MODENA_PATH + lastStyleUsed);
+                lastStyleUsed = null;
+            }
+
+            // install new style
+            String userData = (String) group.getSelectedToggle().getUserData();
+            if (userData != null) {
+                lastStyleUsed = userData;
+                StyleManager.getInstance().addUserAgentStylesheet(MODENA_PATH + userData);
+            }
+        });
+        
+        ToggleButton disableHighContrast = new ToggleButton("Disable High Contrast");
+        disableHighContrast.setMaxWidth(Double.MAX_VALUE);
+        disableHighContrast.setUserData(null);
+        disableHighContrast.setToggleGroup(group);
+        disableHighContrast.setSelected(true);
+
+        ToggleButton whiteOnBlackBtn = new ToggleButton("White on black");
+        whiteOnBlackBtn.setMaxWidth(Double.MAX_VALUE);
+        whiteOnBlackBtn.setUserData("whiteOnBlack.css");
+        whiteOnBlackBtn.setToggleGroup(group);
+
+        ToggleButton blackOnWhiteBtn = new ToggleButton("Black on white");
+        blackOnWhiteBtn.setMaxWidth(Double.MAX_VALUE);
+        blackOnWhiteBtn.setUserData("blackOnWhite.css");
+        blackOnWhiteBtn.setToggleGroup(group);
+
+        ToggleButton yellowOnBlackBtn = new ToggleButton("Yellow on black");
+        yellowOnBlackBtn.setMaxWidth(Double.MAX_VALUE);
+        yellowOnBlackBtn.setUserData("yellowOnBlack.css");
+        yellowOnBlackBtn.setToggleGroup(group);
+
+        VBox vbox = new VBox(10, disableHighContrast, whiteOnBlackBtn, blackOnWhiteBtn, yellowOnBlackBtn);
+        vbox.setPadding(new Insets(10));
+
+        Scene scene = new Scene(vbox);
+
+        stage.setScene(scene);
+        stage.setWidth(200);
+        stage.setHeight(200);
+        stage.show();
+    }
+}
diff --git a/modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java b/modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java
--- a/modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java
+++ b/modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java
@@ -25,6 +25,7 @@
 
 package com.sun.javafx.css;
 
+import javafx.application.Application;
 import javafx.css.Styleable;
 import java.io.FileNotFoundException;
 import java.io.FilePermission;
@@ -1318,6 +1319,41 @@
         CssError.setCurrentScene(null);
     }
 
+    /**
+     * Removes the specified stylesheet from the application default user agent
+     * stylesheet list.
+     * @param url  The file URL, either relative or absolute, as a String.
+     */
+    public void removeUserAgentStylesheet(String url) {
+        if (url == null ) {
+            throw new IllegalArgumentException("null arg url");
+        }
+
+        final String fname = url.trim();
+        if (fname.isEmpty()) {
+            return;
+        }
+
+        // if we already have this stylesheet, remove it!
+        boolean removed = false;
+        for (int n = platformUserAgentStylesheetContainers.size() - 1; n >= 0; n--) {
+            // don't remove the platform default user agent stylesheet
+            if (fname.equals(Application.getUserAgentStylesheet())) {
+                continue;
+            }
+
+            StylesheetContainer container = platformUserAgentStylesheetContainers.get(n);
+            if (fname.equals(container.fname)) {
+                platformUserAgentStylesheetContainers.remove(n);
+                removed = true;
+            }
+        }
+
+        if (removed) {
+            userAgentStylesheetsChanged();
+        }
+    }
+
     /*
      * If the userAgentStylesheets change, then all scenes are updated.
      */