I want do not want to show logo, title, or subtitle but instead move the widget container to the left.
<mx:HBox id="widgetBox" width="100%" horizontalAlign="center">
<mx:Image id="logoIcon"
horizontalAlign="left"
maxHeight="{headerContent.height}"
maxWidth="80"
verticalAlign="middle"
visible="false" includeInLayout="false"/>
<s:VGroup id="titleGroup"
height="{headerContent.height}"
gap="0" visible="false" includeInLayout="false">
<s:Label id="bannerTitle" styleName="BannerTitle"/>
<s:Label id="bannerSubtitle" styleName="BannerSubtitle"/>
</s:VGroup>
<mx:HBox id="widgetBox"
width="100%"
horizontalAlign="left">
What do you mean about "re-designing" the header bar? Do you want to build a completely different one? Want to customize the existent widget?