<svg width="100%" viewBox="215 35 250 250" role="img" xmlns="http://www.w3.org/2000/svg" style="">
<title style="fill:rgb(0, 0, 0);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto">fBlock icon</title>
<desc style="fill:rgb(0, 0, 0);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto">An icon for fBlock: a horseshoe shrinkage prior selecting random-effect blocks. Five stacked pills, two full-width and bright (selected) and three shrunk to near zero.</desc>

<rect x="220" y="40" width="240" height="240" rx="48" fill="#0f172a" style="fill:rgb(15, 23, 42);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>

<rect x="251" y="76" width="178" height="18" rx="9" fill="#bfdbfe" style="fill:rgb(191, 219, 254);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>
<rect x="329" y="111" width="22" height="18" rx="9" fill="#60a5fa" opacity="0.4" style="fill:rgb(96, 165, 250);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:0.4;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>
<rect x="267" y="146" width="146" height="18" rx="9" fill="#bfdbfe" style="fill:rgb(191, 219, 254);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>
<rect x="325" y="181" width="30" height="18" rx="9" fill="#60a5fa" opacity="0.45" style="fill:rgb(96, 165, 250);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:0.45;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>
<rect x="331" y="216" width="18" height="18" rx="9" fill="#60a5fa" opacity="0.4" style="fill:rgb(96, 165, 250);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:0.4;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:16px;font-weight:400;text-anchor:start;dominant-baseline:auto"/>

<text x="340" y="335" text-anchor="middle" style="font-size: 24px; letter-spacing: 0.12em;;fill:rgb(250, 249, 245);stroke:none;color:rgb(255, 255, 255);stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;opacity:1;font-family:&quot;Anthropic Sans&quot;, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, sans-serif;font-size:24px;font-weight:500;text-anchor:middle;dominant-baseline:auto">fBlock</text>
</svg>