LinearGradientBrush trouble (2)

I have found in https://commons.wikimedia.org/wiki/Tango_icons fragment of icon with linear gradient trouble in SharpVectors. This is hard core sample:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created with Inkscape (http://www.inkscape.org/) -->

<svg
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:cc="http://creativecommons.org/ns#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:xlink="http://www.w3.org/1999/xlink"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   width="32px"
   height="32px"
   id="svg2"
   sodipodi:version="0.32"
   inkscape:version="0.92.3 (2405546, 2018-03-11)"
   version="1.0"
   sodipodi:docname="Test2.svg"
   inkscape:export-filename="/home/lapo/Desktop/per jimmac/scalable/devices/battery.png"
   inkscape:export-xdpi="90"
   inkscape:export-ydpi="90"
   inkscape:output_extension="org.inkscape.output.svg.inkscape">
  <defs
     id="defs4">
    <linearGradient
       inkscape:collect="always"
       xlink:href="#StrokeGradient"
       id="linearGradient3339-5"
       gradientUnits="userSpaceOnUse"
       x1="15.518289"
       y1="35.925144"
       x2="17.391279"
       y2="41.137268" />
    <linearGradient
       inkscape:collect="always"
       id="StrokeGradient">
      <stop
         style="stop-color:#d11111;stop-opacity:1"
         offset="0"
         id="stop7479-7" />
      <stop
         style="stop-color:#7abe03;stop-opacity:1"
         offset="1"
         id="stop7481-6" />
    </linearGradient>
  </defs>
  <sodipodi:namedview
     id="base"
     pagecolor="#ffffff"
     bordercolor="#666666"
     borderopacity="1.0"
     inkscape:pageopacity="0.0"
     inkscape:pageshadow="2"
     inkscape:zoom="32"
     inkscape:cx="23.422064"
     inkscape:cy="18.0022"
     inkscape:document-units="px"
     inkscape:current-layer="layer5"
     showgrid="true"
     inkscape:window-width="1920"
     inkscape:window-height="1017"
     inkscape:window-x="-8"
     inkscape:window-y="-8"
     stroke="#c4a000"
     inkscape:grid-points="false"
     inkscape:grid-bbox="true"
     fill="#555753"
     showborder="true"
     inkscape:showpageshadow="false"
     inkscape:window-maximized="1"
     inkscape:snap-global="false">    
  </sodipodi:namedview>
  <g
     inkscape:groupmode="layer"
     id="layer5"
     inkscape:label="Icon"
     style="display:inline"
     transform="translate(0,-16)">
    <ellipse
       id="path7459-3"
       style="color:#000000;display:inline;overflow:visible;visibility:visible;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:url(#linearGradient3339-5);stroke-width:1.24232507;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;enable-background:accumulate"
       cx="16.175068"
       cy="38.542446"
       rx="7.8665628"
       ry="4.8613591"
       transform="matrix(1.2076429,0,0,0.53652634,-3.5337049,9.6498437)" />
  </g>
</svg>

I have tested 3 different SVG parsers - all of them failed on this sample. I think it cos of this transformations:

<g
     inkscape:groupmode="layer"
     id="layer5"
     inkscape:label="Icon"
     style="display:inline"
     transform="translate(0,-16)">  <=====
    <ellipse
       id="path7459-3"
       style="color:#000000;display:inline;overflow:visible;visibility:visible;fill:none;fill-opacity:1;fill-rule:nonzero;stroke:url(#linearGradient3339-5);stroke-width:1.24232507;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;enable-background:accumulate"
       cx="16.175068"
       cy="38.542446"
       rx="7.8665628"
       ry="4.8613591"
       transform="matrix(1.2076429,0,0,0.53652634,-3.5337049,9.6498437)" /> <======
  </g>

[Kozinaka]

If it would be possible I wish have a quick edit mode to snap parts of icon for each size version. Like a small specialized Inkscape for snapping: move nodes, change thickness, snapping, quick preview for result.

[paulushub]

Thank you, preparing version 1.2 for release by Monday.