You can integrate a vector drawing in SVG format into a Canvas PowerApps page.
1. In PowerApps Studio, add an image control (Insert > Media > Image).
2. search an icon on the Flaticon website (http://www.flaticon.com) and download it in SVG format.
3. In NotePad or Sublime, replace the double quotes with single quotes.
4. Add the following formula to the Image property of the newly added control
"data:image/svg+xml," & EncodeUrl("
<svg version='1.1' id='fi_686751' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 512 512' style='enable-background:new 0 0 512 512;' xml:space='preserve'>
<linearGradient id='SVGID_1_' gradientUnits='userSpaceOnUse' x1='256' y1='514' x2='256' y2='2' gradientTransform='matrix(1 0 0 -1 0 514)'>
<stop offset='0' style='stop-color:#2AF598'></stop>
<stop offset='1' style='stop-color:#009EFD'></stop>
</linearGradient>
<circle style='fill:url(#SVGID_1_);' cx='256' cy='256' r='256'></circle>
</svg>
")