The Tor Browser / file revision

 <svg xmlns="http://www.w3.org/2000/svg" 

      xmlns:xlink="http://www.w3.org/1999/xlink" font-size="80">

 <linearGradient id="grad1" gradientUnits="objectBoundingBox" x1="0" y1="0" x2="1" y2="0">

   <stop id="green"   stop-color="#00dd00"   offset="0"/>

   <stop id="blue"    stop-color="#0000dd"   offset="0.5"/>

   <stop id="magenta" stop-color="magenta"   offset="1"/>

 </linearGradient>

 <rect x="20" y="20" width="440" height="80" fill="url(#grad1)" />

 <linearGradient id="grad2" xlink:href="#grad1"/>

 <rect x="20" y="150" width="440" height="80" fill="url(#grad2)" />

 <text x="20" y="300" width="440" height="80" fill="url(#grad1)">gradiation</text>

 <text x="20" y="400" width="440" height="80" fill="url(#grad2)">gradiation</text>

 </svg>