<p></p>
<p dir="auto">I made a little utility to try out filter combinations more easily:<br>
<a href="https://codepen.io/hlfan/full/GRVVGog" rel="nofollow">https://codepen.io/hlfan/full/GRVVGog</a><br>
For convenient editing in the dev tools, the outputted filter is stored in a custom property and the filter is also applied to the SVG that holds the filters.</p>
<p dir="auto">My first insight from using it:<br>
The ÖPNVKarte didn't work well with the <code class="notranslate">invert()hue-rotate(.5turn)</code> method, as it made tram and subway lines barely distinguishable, but this goes away with another inversion method.</p>

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