<layers>
<visual>

<param name="opacity" type="anim">
<duration>5.0</duration>
<style>linear</style>
<keyframe at="0.0">0.0</keyframe>
<keyframe at="1.0">1.0</keyframe>
</param>
<param name="rotation_angle" type="anim">
<duration>3.0</duration>
<style>inoutquad</style>
<keyframe at="0.0">0</keyframe>
<keyframe at="1.0">270</keyframe>
</param>
<param name="rotation_origin_x" ref="visual.width">
0.5
</param>
<param name="rotation_origin_y" ref="visual.height">
0.5
</param>
<param name="rotation_axis_x" type="anim">
0
</param>
<param name="rotation_axis_y" type="anim">
0
</param>
<param name="rotation_axis_z" type="anim">
1
</param>

</visual>
</layers>