<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2007/11/21/creating-tool-tips-on-the-flex-richtexteditor-control/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white" viewSourceURL="srcview/index.html"> 

    <mx:RichTextEditor id="richTextEditor"
            title="I'm a rich text editor"
            showToolTips="true"
            fontFamilyToolTip="Select a font family."
            fontSizeToolTip="Select a font size."
            boldToolTip="I'm bold"
            italicToolTip="I'm italic"
            underlineToolTip="I'm an underline"
            colorPickerToolTip="Select a color."
            alignToolTip="Left | Center | Right | Justified"
            bulletToolTip="I'm a bullet"
            linkToolTip="I'm a link" /> 

</mx:Application>