template.embed.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg version="1.1" viewbox="0 0 {{width}} {{height}}" width="{{width}}px" height="{{height}}px" xmlns="http://www.w3.org/2000/svg">
  <defs>
    <filter id="blend">
        <feImage href="data:image/jpeg;base64,{{{Alpha}}}" result="mask" x="0" y="0" width="{{width}}" height="{{height}}"/>
      
      <feColorMatrix 
        type="matrix" 
        in="mask"
        values="0 0 0 0 1
                0 0 0 0 1
                0 0 0 0 1
                0 0 1 0 0"
        result="alpha"                   
      />
      <feComposite in="alpha" in2="SourceGraphic"
                     operator="arithmetic" k1="1" k2="0" k3="0" k4="0"/>
    </filter>
  </defs>
  <image filter="url(#blend)" x="0" y="0" width="{{width}}" height="{{height}}" href="data:image/jpeg;base64,{{{RGB}}}"/>
</svg>