<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/11/21/customizing-the-flex-richtexteditor-controls-title-style/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:Style>
        .richTextEditorTitleStyle {
            color: haloBlue;
            fontSize: 24;
            fontWeight: bold;
            textAlign: center;
        }
    </mx:Style>

    <mx:RichTextEditor id="richTextEditor"
            title="Rich Text Editor"
            titleStyleName="richTextEditorTitleStyle" />

</mx:Application>