simplified about component, extraction to its own package
diff --git a/src/main/java/org/apache/log4j/chainsaw/ChainsawAbout.java b/src/main/java/org/apache/log4j/chainsaw/ChainsawAbout.java
deleted file mode 100644
index 06b1a93..0000000
--- a/src/main/java/org/apache/log4j/chainsaw/ChainsawAbout.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.log4j.chainsaw;
-
-import org.apache.log4j.chainsaw.help.HelpManager;
-
-import javax.swing.*;
-import javax.swing.event.HyperlinkEvent;
-import java.awt.*;
-import java.io.IOException;
-
-import org.apache.log4j.chainsaw.logui.LogUI;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-
-/**
- * A simple About box telling people stuff about this project
- *
- * @author Paul Smith <psmith@apache.org>
- */
-public class ChainsawAbout extends JDialog {
-    private static final Logger LOG = LogManager.getLogger();
-
-    private final JEditorPane editPane = new JEditorPane("text/html", "");
-
-    private final JScrollPane scrollPane = new JScrollPane(editPane,
-        ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER,
-        ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
-
-    private boolean sleep = false;
-
-    private final Object guard = new Object();
-
-    public ChainsawAbout(LogUI logUI) {
-        super(logUI, "About Chainsaw v2", true);
-        setBackground(Color.white);
-        getContentPane().setLayout(new BorderLayout());
-
-        JButton closeButton = new JButton(" Close ");
-        closeButton.addActionListener(e -> setVisible(false));
-        closeButton.setDefaultCapable(true);
-
-        try {
-            String url = ChainsawAbout.class.getName().replace('.', '/') + ".html";
-            editPane.setPage(this.getClass().getClassLoader().getResource(url));
-        } catch (IOException e) {
-            throw new RuntimeException("Failed to find the About panel HTML", e);
-        }
-
-        getContentPane().add(scrollPane, BorderLayout.CENTER);
-        getContentPane().add(closeButton, BorderLayout.SOUTH);
-
-        JTextComponentFormatter.applySystemFontAndSize(editPane);
-
-        editPane.setEditable(false);
-        editPane.addHyperlinkListener(
-            e -> {
-                if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
-                    HelpManager.getInstance().setHelpURL(e.getURL());
-                }
-            });
-
-        setSize(320, 240);
-        new Thread(new Scroller()).start();
-        scrollPane.getViewport().setViewPosition(new Point(0, 0));
-
-        setLocationRelativeTo(logUI);
-    }
-
-    private class Scroller implements Runnable {
-
-        public void run() {
-            while (true) {
-                try {
-                    if (sleep) {
-                        synchronized (guard) {
-                            guard.wait();
-                        }
-                        SwingUtilities.invokeLater(() -> scrollPane.getViewport().setViewPosition(
-                            new Point(0, 0)));
-                        continue;
-                    }
-                    SwingUtilities.invokeLater(() -> scrollPane.getViewport().setViewPosition(
-                        new Point(0, scrollPane.getViewport()
-                            .getViewPosition().y + 1)));
-                    Thread.sleep(100);
-                } catch (Exception e) {
-                    LOG.error("Error during scrolling", e);
-                }
-
-            }
-        }
-    }
-
-    @Override
-    public void setVisible(boolean visible) {
-        super.setVisible(visible);
-        sleep = !visible;
-        synchronized (guard) {
-            guard.notifyAll();
-        }
-    }
-}
diff --git a/src/main/java/org/apache/log4j/chainsaw/components/about/ChainsawAbout.java b/src/main/java/org/apache/log4j/chainsaw/components/about/ChainsawAbout.java
new file mode 100644
index 0000000..50ae52e
--- /dev/null
+++ b/src/main/java/org/apache/log4j/chainsaw/components/about/ChainsawAbout.java
@@ -0,0 +1,99 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.log4j.chainsaw.components.about;
+
+import org.apache.log4j.chainsaw.JTextComponentFormatter;
+import org.apache.log4j.chainsaw.help.HelpManager;
+
+import javax.swing.*;
+import javax.swing.event.HyperlinkEvent;
+import java.awt.*;
+import java.io.IOException;
+import java.net.URL;
+
+import org.apache.log4j.chainsaw.logui.LogUI;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+/**
+ * A simple About box telling people stuff about this project
+ *
+ * @author Paul Smith <psmith@apache.org>
+ */
+public class ChainsawAbout extends JDialog {
+    private static final Logger LOG = LogManager.getLogger(ChainsawAbout.class);
+
+    private final LogUI logUI;
+
+    public ChainsawAbout(LogUI logUI) {
+        super(logUI, "About Chainsaw v2", true);
+        this.logUI = logUI;
+        setBackground(Color.white);
+        getContentPane().setLayout(new BorderLayout());
+
+        JButton closeButton = new JButton(" Close ");
+        closeButton.addActionListener(e -> setVisible(false));
+        closeButton.setDefaultCapable(true);
+
+        JEditorPane editPane = new JEditorPane("text/html", "");
+        try {
+            URL url = ClassLoader.getSystemResource("pages/about.html");
+            editPane.setPage(url);
+        } catch (IOException e) {
+            throw new RuntimeException("Failed to find the about panel HTML", e);
+        }
+
+        JScrollPane scrollPane = new JScrollPane(
+            editPane,
+            ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
+            ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+
+        getContentPane().add(scrollPane, BorderLayout.CENTER);
+        getContentPane().add(closeButton, BorderLayout.SOUTH);
+
+        editPane.setEditable(false);
+        editPane.addHyperlinkListener(
+            e -> {
+                if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
+                    HelpManager.getInstance().setHelpURL(e.getURL());
+                }
+            });
+
+        calculateDimentions();
+        scrollPane.getViewport().setViewPosition(new Point(0, 0));
+        setLocationRelativeTo(logUI);
+    }
+
+    /**
+     * Calculates the dimensions of the about panel based on the parents component (logUI).
+     * The default dimensions are 10% smaller than the parent component, except the height/width
+     * are 400 or below. In that case the same dimensions of the parent component are taken.
+     */
+    public void calculateDimentions() {
+        Dimension size = logUI.getSize();
+        double height = size.getHeight();
+        double width = size.getWidth();
+        if (height > 400) {
+            height = height - (height * 0.10);
+        }
+        if (width > 400) {
+            width = width - (width * 0.10);
+        }
+        setSize((int)width, (int)height);
+
+    }
+}
diff --git a/src/main/java/org/apache/log4j/chainsaw/logui/LogUI.java b/src/main/java/org/apache/log4j/chainsaw/logui/LogUI.java
index 323b504..db1380e 100644
--- a/src/main/java/org/apache/log4j/chainsaw/logui/LogUI.java
+++ b/src/main/java/org/apache/log4j/chainsaw/logui/LogUI.java
@@ -19,6 +19,7 @@
 
 import org.apache.commons.configuration2.AbstractConfiguration;
 import org.apache.log4j.chainsaw.*;
+import org.apache.log4j.chainsaw.components.about.ChainsawAbout;
 import org.apache.log4j.chainsaw.components.elements.SmallButton;
 import org.apache.log4j.chainsaw.components.logpanel.LogPanel;
 import org.apache.log4j.chainsaw.components.tabbedpane.ChainsawTabbedPane;
@@ -413,6 +414,8 @@
     public void showAboutBox() {
         if (aboutBox == null) {
             aboutBox = new ChainsawAbout(this);
+        } else {
+            aboutBox.calculateDimentions();
         }
 
         aboutBox.setVisible(true);
diff --git a/src/main/resources/pages/about.html b/src/main/resources/pages/about.html
new file mode 100644
index 0000000..b985288
--- /dev/null
+++ b/src/main/resources/pages/about.html
@@ -0,0 +1,31 @@
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+-->
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<html>
+<head>
+  <link rel="stylesheet" href="stylesheet.css" type="text/css">
+</head>
+
+<body>
+  <img align="top" src="img/logo.png" border="0" alt="Log4j Logo">
+  <h1>Chainsaw v2</h1>
+  <p>Brought to you by the Apache Logging Services Project team.</p>
+  <p>Please send questions, bug reports and/or feature requests to <b>dev@logging.apache.org</b></p>
+  <p>Website: <b>https://logging.apache.org</b></p>
+</body>
+</html>
diff --git a/src/main/resources/pages/img/logo.png b/src/main/resources/pages/img/logo.png
new file mode 100644
index 0000000..9ad3d2c
--- /dev/null
+++ b/src/main/resources/pages/img/logo.png
Binary files differ
diff --git a/src/main/resources/pages/stylesheet.css b/src/main/resources/pages/stylesheet.css
new file mode 100644
index 0000000..90dd5a5
--- /dev/null
+++ b/src/main/resources/pages/stylesheet.css
@@ -0,0 +1,33 @@
+/*
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+ body {
+  font-size: 1.2em;
+  color: #000000;
+  font-family: Helvetica, Arial, sans-serif;
+}
+
+h1 {
+  font-size: 1.5em;
+  font-weight: bold;
+}
+
+h2 {
+  font-size: 1.3em;
+  font-weight: bold;
+}