<p></p>
<p>Invert just by itself looks ugly, but you inspired me to play with other properties and I got this:</p>
<p>Before:<br>
<a target="_blank" rel="noopener noreferrer" href="https://user-images.githubusercontent.com/49721209/99157209-e86c8580-26be-11eb-8deb-cef85dda2508.png"><img src="https://user-images.githubusercontent.com/49721209/99157209-e86c8580-26be-11eb-8deb-cef85dda2508.png" alt="openstreetmap-default" style="max-width:100%;"></a></p>
<p>After:<br>
<a target="_blank" rel="noopener noreferrer" href="https://user-images.githubusercontent.com/49721209/99157211-ec000c80-26be-11eb-8cf9-c982f27a7902.png"><img src="https://user-images.githubusercontent.com/49721209/99157211-ec000c80-26be-11eb-8cf9-c982f27a7902.png" alt="openstreetmap-filters" style="max-width:100%;"></a></p>
<p>Code:<br>
<code>filter: brightness(0.6) invert(1) contrast(3) hue-rotate(200deg) saturate(0.3) brightness(0.7);</code></p>

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