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# Outline-only QR Code
For a vector QR code that only uses stroke lines (no fill), replace the `<defs>` section of your *.svg* file with:
```svg
<style>
line, polyline, path, rect {
stroke: currentColor;
fill: none;
stroke-linecap: round;
stroke-width: 0.1;
}
</style>
<defs>
<!-- Filled data modules -->
<g id="b">
<!-- Multiply cross -->
<line x1="-0.25" y1="-0.25" x2="0.25" y2="0.25" />
<line x1="0.25" y1="-0.25" x2="-0.25" y2="0.25" />
<!-- Addition cross -->
<line x1="-0.354" y1="0" x2="0.354" y2="0" />
<line x1="0" y1="-0.354" x2="0" y2="0.354" />
</g>
<!-- Filled finder and alignment modules -->
<g id="bb">
<!-- Zig-zag fill (not used) -->
<!--
<polyline points="-0.5,-0.5 -0.25,-0.5 -0.5,-0.25 -0.5,0 0,-0.5 0.25,-0.5 -0.5,0.25 -0.5,0.5 0.5,-0.5 0.5,-0.25 -0.25,0.5 0,0.5 0.5,0 0.5,0.25 0.25,0.5 0.5,0.5" stroke="currentColor" stroke-width="0.25" stroke-linecap="round" fill="none" />
-->
<!-- Forward slash hatch -->
<line x1="-0.25" y1="-0.5" x2="-0.5" y2="-0.25" />
<line x1="0" y1="-0.5" x2="-0.5" y2="0" />
<line x1="0.25" y1="-0.5" x2="-0.5" y2="0.25" />
<line x1="0.5" y1="-0.5" x2="-0.5" y2="0.5" />
<line x1="0.5" y1="-0.25" x2="-0.25" y2="0.5" />
<line x1="0.5" y1="0" x2="0" y2="0.5" />
<line x1="0.5" y1="0.25" x2="0.25" y2="0.5" />
<!-- Backward slash hatch -->
<line x1="0.25" y1="-0.5" x2="0.5" y2="-0.25" />
<line x1="0" y1="-0.5" x2="0.5" y2="0" />
<line x1="-0.25" y1="-0.5" x2="0.5" y2="0.25" />
<line x1="-0.5" y1="-0.5" x2="0.5" y2="0.5" />
<line x1="-0.5" y1="-0.25" x2="0.25" y2="0.5" />
<line x1="-0.5" y1="0" x2="0" y2="0.5" />
<line x1="-0.5" y1="0.25" x2="-0.25" y2="0.5" />
</g>
<!-- Use the modules for finder/alignment -->
<use id="f" xlink:href="#bb" />
<use id="a" xlink:href="#bb" />
<!-- Do not use a particular shape for finder/alignment patterns -->
<path id="fc" d="" visibility="hidden" />
<path id="ac" d="" visibility="hidden" />
</defs>
```