Revision control
++ <svg xmlns="http://www.w3.org/2000/svg" width="750" height="225">
++ <defs>
++ <text id="textElement" font-family="Arial" font-size="36" font-weight="bold">
++ If you can read this, your code is wrong.
++ </text>
++ </defs>
++
++ <g id="testLine">
++ <use href="#textElement" y="50" fill="none" stroke="none"/>
++ <use href="#textElement" y="100" fill="none" stroke="green" stroke-opacity="0"/>
++ <use href="#textElement" y="150" fill="blue" stroke="none" fill-opacity="0"/>
++ <use href="#textElement" y="200" fill="blue" stroke="green" fill-opacity="0" stroke-opacity="0"/>
++ </g>
++ </svg>