unction set groupName(value:String):void</code>
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<a name="historyFontSize"></a>
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<td class="detailHeaderName">historyFontSize</td><td class="detailHeaderType">property</td><td class="detailHeaderRule">&nbsp;</td>
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<code>historyFontSize:uint</code>&nbsp;&nbsp;[read-write]<p>
   Specifies the font size of the chat history.
   </p><span class="label">Implementation</span>
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<code>&nbsp;&nbsp;&n