packages/SystemUI/res/anim/ic_signal_workmode_enable_stickito_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<set
    xmlns:android="http://schemas.android.com/apk/res/android" >
    <objectAnimator
        android:duration="333"
        android:propertyName="alpha"
        android:valueFrom="0.54"
        android:valueTo="1.0"
        android:valueType="floatType"
        android:interpolator="@interpolator/ic_signal_workmode_enable_animation_interpolator_3" />
</set>