e <a href="../../../../flixel/addons/ui/interfaces/index.html">flixel.addons.ui.interfaces</a></small></h4>    <h4><small> <span class="muted">extended by </span><a class="type" title="flixel.addons.ui.FlxUI9SliceSprite" href="../../../../flixel/addons/ui/FlxUI9SliceSprite.html">FlxUI9SliceSprite</a>, <a class="type" title="flixel.addons.ui.FlxUIBar - ..." href="../../../../flixel/addons/ui/FlxUIBar.html">FlxUIBar</a>, <a class="type" title="flixel.addons.ui.FlxUIInputText" href="../../../../flixel/addons/u