<!-- flip and change opacity -->

<layers> 
 	<visual>
 		<param name="opacity" type="anim">
    		<duration>1.0</duration>
    		<style>easeinout</style>
            <keyframe at="0.0">0.3</keyframe>
	        <keyframe at="1.0">1.0</keyframe>            
        </param>                
  	</visual>
</layers>