<p></p>
<p dir="auto">Adding onto <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/pkrasicki/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/pkrasicki">@pkrasicki</a>'s proposal:<br>
Modern CSS could even skip the body class:</p>
<div class="highlight highlight-source-css" dir="auto"><pre class="notranslate">.<span class="pl-c1">leaflet-tile-pane</span> .<span class="pl-c1">leaflet-layer</span><span class="pl-kos">:</span><span class="pl-c1">not</span>(.<span class="pl-c1">dark</span>)<span class="pl-kos">,</span> .<span class="pl-c1">mapkey-table-entry</span> <span class="pl-ent">td</span><span class="pl-kos">:</span><span class="pl-c1">first-child</span> <span class="pl-c1">></span> <span class="pl-ent"><span class="pl-c1">*</span></span> {
        <span class="pl-ent">body</span><span class="pl-kos">:</span><span class="pl-c1">has</span>(<span class="pl-ent">input</span>[<span class="pl-c1">type</span><span class="pl-c1">=</span><span class="pl-s">"radio"</span>][<span class="pl-c1">name</span><span class="pl-c1">=</span><span class="pl-s">"filter"</span>][<span class="pl-c1">value</span><span class="pl-c1">=</span><span class="pl-s">"light"</span>]<span class="pl-kos">:</span><span class="pl-c1">checked</span>) <span class="pl-ent">&</span> {
                <span class="pl-c1">filter</span><span class="pl-kos">:</span> none;
        }
        <span class="pl-ent">body</span><span class="pl-kos">:</span><span class="pl-c1">has</span>(<span class="pl-ent">input</span>[<span class="pl-c1">type</span><span class="pl-c1">=</span><span class="pl-s">"radio"</span>][<span class="pl-c1">name</span><span class="pl-c1">=</span><span class="pl-s">"filter"</span>][<span class="pl-c1">value</span><span class="pl-c1">=</span><span class="pl-s">"dim"</span>]<span class="pl-kos">:</span><span class="pl-c1">checked</span>) <span class="pl-ent">&</span> {
                <span class="pl-c1">filter</span><span class="pl-kos">:</span> <span class="pl-en">brightness</span>(<span class="pl-c1">80<span class="pl-smi">%</span></span>);
        }
        <span class="pl-ent">body</span><span class="pl-kos">:</span><span class="pl-c1">has</span>(<span class="pl-ent">input</span>[<span class="pl-c1">type</span><span class="pl-c1">=</span><span class="pl-s">"radio"</span>][<span class="pl-c1">name</span><span class="pl-c1">=</span><span class="pl-s">"filter"</span>][<span class="pl-c1">value</span><span class="pl-c1">=</span><span class="pl-s">"dark"</span>]<span class="pl-kos">:</span><span class="pl-c1">checked</span>) <span class="pl-ent">&</span> {
                <span class="pl-c1">filter</span><span class="pl-kos">:</span> <span class="pl-en">invert</span>(<span class="pl-c1">95<span class="pl-smi">%</span></span>)<span class="pl-en">hue-rotate</span>(<span class="pl-c1">180<span class="pl-smi">deg</span></span>);
        }
}</pre></div>
<p dir="auto">And yes, this shouldn't be implemented like this, but I like the idea of the simplicity in this.</p>
<p dir="auto">Notably, this would also ensure usability for non-logged-in users.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />Reply to this email directly, <a href="https://github.com/openstreetmap/openstreetmap-website/issues/5324#issuecomment-2480757188">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AAK2OLIT2BQQQ2QHTTWBEKT2A6OMLAVCNFSM6AAAAABRZTYYCGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIOBQG42TOMJYHA">unsubscribe</a>.<br />You are receiving this because you are subscribed to this thread.<img src="https://github.com/notifications/beacon/AAK2OLMIQ4ZONAYNI5CSOUD2A6OMLA5CNFSM6AAAAABRZTYYCGWGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTUT3VM4I.gif" height="1" width="1" alt="" /><span style="color: transparent; font-size: 0; display: none; visibility: hidden; overflow: hidden; opacity: 0; width: 0; height: 0; max-width: 0; max-height: 0; mso-hide: all">Message ID: <span><openstreetmap/openstreetmap-website/issues/5324/2480757188</span><span>@</span><span>github</span><span>.</span><span>com></span></span></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/openstreetmap/openstreetmap-website/issues/5324#issuecomment-2480757188",
"url": "https://github.com/openstreetmap/openstreetmap-website/issues/5324#issuecomment-2480757188",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>