<fxlayout>

  <page name="Linear Gradient">

    <control>startPoint</control>

    <control>endPoint</control>

    <control>startColor</control>

    <control>endColor</control>

    <rgb_link_button>startColor endColor</rgb_link_button>

    <control>curveType</control>

<separator label="Distortion Wave"/>

     <control>wave_amplitude</control>

     <control>wave_frequency</control>

     <control>wave_phase</control>

  </page>

</fxlayout>