1 <layers>

     2 <visual>

     3 

     4 <param name="scale_x" type="anim">

     5     <duration>0.3</duration>

     6     <style>linear</style>

     7     <keyframe at="0.0">0.0</keyframe>

     8     <keyframe at="1.0">1.0</keyframe>

     9     <start ref="visual.width">1</start>

    10     <end ref="screen.width">1</end>

    11 </param>

    12     

    13 <param name="scale_y" type="anim">

    14     <duration>0.3</duration>

    15     <style>linear</style>

    16     <keyframe at="0.0">0.0</keyframe>

    17     <keyframe at="1.0">1.0</keyframe>

    18     <start ref="visual.height">1</start>

    19     <end ref="screen.height">1</end>

    20 </param>

    21 

    22 <param name="scale_origin_x" ref="screen.width">0.5</param>

    23 <param name="scale_origin_y" ref="screen.height">0.5</param>

    24 

    25 <param name="opacity" type="anim">

    26 <duration>0.3</duration>

    27 <style>linear</style>

    28 <keyframe at="0.0">1.0</keyframe>

    29 <keyframe at="0.5">1.0</keyframe>

    30 <keyframe at="1.0">0.5</keyframe>

    31 </param>

    32 

    33 </visual>

    34 </layers>