chromium/third_party/blink/web_tests/svg/custom/resources/spinner.svg

<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="40px" height="40px" viewBox="0 0 50 50">
    
    <symbol id="spoke"><polygon points="22,0 28,0 23,15 23,15" fill="#000" /></symbol>
        
    <g id="spinner">
        <use xlink:href="#spoke" transform="rotate(0,25,25)"   fill-opacity="0.50" />
        <use xlink:href="#spoke" transform="rotate(30,25,25)"  fill-opacity="0.08" />
        <use xlink:href="#spoke" transform="rotate(60,25,25)"  fill-opacity="0.12" />
        <use xlink:href="#spoke" transform="rotate(90,25,25)"  fill-opacity="0.16" />
        <use xlink:href="#spoke" transform="rotate(120,25,25)" fill-opacity="0.20" />
        <use xlink:href="#spoke" transform="rotate(150,25,25)" fill-opacity="0.24" />
        <use xlink:href="#spoke" transform="rotate(180,25,25)" fill-opacity="0.29" />
        <use xlink:href="#spoke" transform="rotate(210,25,25)" fill-opacity="0.33" />
        <use xlink:href="#spoke" transform="rotate(240,25,25)" fill-opacity="0.37" />
        <use xlink:href="#spoke" transform="rotate(270,25,25)" fill-opacity="0.41" />
        <use xlink:href="#spoke" transform="rotate(300,25,25)" fill-opacity="0.45" />
        <use xlink:href="#spoke" transform="rotate(330,25,25)" fill-opacity="0.50" />
    </g>
</svg>