diff --git a/templates/base.html.j2 b/templates/base.html.j2
index 841150b..68eca68 100644
--- a/templates/base.html.j2
+++ b/templates/base.html.j2
@@ -13,16 +13,16 @@
   <meta property="og:title" content="{{ self.title() }}" />
   <meta property="og:description" content="{{ self.description() }}" />
   <meta property="og:url" content="{{ base_url }}{{ self.canonical_path() }}" />
-  <meta property="og:image" content="{{ base_url }}/logo.png?v=2" />
+  <meta property="og:image" content="{{ base_url }}/logo.png?v=3" />
   <meta property="og:image:width" content="512" />
   <meta property="og:image:height" content="512" />
   <meta property="og:image:alt" content="Thermograph logo" />
   <meta name="twitter:card" content="summary" />
-  <link rel="icon" href="{{ base }}/favicon.svg" type="image/svg+xml" />
-  <link rel="icon" href="{{ base }}/favicon-48.png" type="image/png" sizes="48x48" />
-  <link rel="icon" href="{{ base }}/favicon-32.png" type="image/png" sizes="32x32" />
-  <link rel="icon" href="{{ base }}/favicon-16.png" type="image/png" sizes="16x16" />
-  <link rel="apple-touch-icon" href="{{ base }}/apple-touch-icon.png" />
+  <link rel="icon" href="{{ base }}/favicon.svg?v=3" type="image/svg+xml" />
+  <link rel="icon" href="{{ base }}/favicon-48.png?v=3" type="image/png" sizes="48x48" />
+  <link rel="icon" href="{{ base }}/favicon-32.png?v=3" type="image/png" sizes="32x32" />
+  <link rel="icon" href="{{ base }}/favicon-16.png?v=3" type="image/png" sizes="16x16" />
+  <link rel="apple-touch-icon" href="{{ base }}/apple-touch-icon.png?v=3" />
   <link rel="manifest" href="{{ base }}/manifest.webmanifest" />
   {% block head_extra %}{% endblock %}
   <link rel="stylesheet" href="{{ base }}/style.css" />
@@ -36,7 +36,7 @@
            hero headline owns the sole h1 and the brand degrades to a <p>. The
            .brand h1, .brand .site-name selector pair in style.css keeps the
            lockup looking identical either way. #}
-        <{{ brand_tag|default('h1') }} class="site-name"><a href="{{ base }}/"><span class="logo"><svg viewBox="0 0 512 512" width="28" height="28" aria-hidden="true"><rect x="32" y="32" width="448" height="448" rx="96" fill="#10141B" stroke="#fff" stroke-opacity=".08" stroke-width="4"/><rect x="64" y="170" width="384" height="48" rx="8" fill="#27131C"/><rect x="64" y="222" width="384" height="48" rx="8" fill="#38322E"/><rect x="64" y="274" width="384" height="48" rx="8" fill="#1A2D27"/><rect x="64" y="326" width="384" height="48" rx="8" fill="#26333F"/><rect x="64" y="378" width="384" height="48" rx="8" fill="#18293A"/><line x1="64" y1="132" x2="448" y2="132" stroke="#46586E" stroke-width="8" stroke-dasharray="26 20"/><path d="M64 410H126V386H160" fill="none" stroke="var(--cold)" stroke-width="34"/><path d="M160 403V352H244V368H282" fill="none" stroke="var(--cool)" stroke-width="34"/><path d="M282 385V320H312" fill="none" stroke="var(--normal)" stroke-width="34"/><path d="M312 337V248H338" fill="none" stroke="var(--warm)" stroke-width="34"/><path d="M338 265V196H366" fill="none" stroke="var(--hot)" stroke-width="34"/><path d="M366 213V132H396" fill="none" stroke="var(--very-hot)" stroke-width="34"/><rect x="382" y="100" width="64" height="64" rx="12" fill="var(--rec-hot)" stroke="#10141B" stroke-width="12"/></svg></span>Thermograph</a></{{ brand_tag|default('h1') }}>
+        <{{ brand_tag|default('h1') }} class="site-name"><a href="{{ base }}/"><span class="logo"><svg viewBox="0 0 512 512" width="28" height="28" aria-hidden="true"><rect x="32" y="32" width="448" height="448" rx="96" fill="#10141B" stroke="#FFFFFF" stroke-opacity="0.08" stroke-width="4"/><rect x="115" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="163" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="211" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="259" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="307" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="355" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="403" y="403" width="42" height="42" rx="10" fill="#111924"/><rect x="163" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="211" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="259" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="307" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="355" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="403" y="355" width="42" height="42" rx="10" fill="#131C25"/><rect x="67" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="163" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="211" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="259" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="307" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="355" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="403" y="307" width="42" height="42" rx="10" fill="#181F27"/><rect x="67" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="211" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="403" y="259" width="42" height="42" rx="10" fill="#131C1F"/><rect x="67" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="115" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="211" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="307" y="211" width="42" height="42" rx="10" fill="#1E1E22"/><rect x="67" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="115" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="307" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="355" y="163" width="42" height="42" rx="10" fill="#1D1C1E"/><rect x="67" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="115" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="163" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="211" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="259" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="307" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="355" y="115" width="42" height="42" rx="10" fill="#1C191E"/><rect x="67" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="115" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="163" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="211" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="259" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="307" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="355" y="67" width="42" height="42" rx="10" fill="#18141B"/><rect x="67" y="403" width="42" height="42" rx="10" fill="#2166ac"/><rect x="67" y="355" width="42" height="42" rx="10" fill="#4393c3"/><rect x="115" y="355" width="42" height="42" rx="10" fill="#4393c3"/><rect x="115" y="307" width="42" height="42" rx="10" fill="#92c5de"/><rect x="115" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="163" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="163" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="163" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="211" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="259" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="259" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="259" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="307" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="355" y="259" width="42" height="42" rx="10" fill="#4a9d5b"/><rect x="355" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="403" y="211" width="42" height="42" rx="10" fill="#f6c18a"/><rect x="403" y="163" width="42" height="42" rx="10" fill="#ef9351"/><rect x="403" y="115" width="42" height="42" rx="10" fill="#dd6b52"/><rect x="403" y="67" width="42" height="42" rx="10" fill="#8f0e20"/></svg></span>Thermograph</a></{{ brand_tag|default('h1') }}>
         <p class="tag">How unusual is the weather? Graded against ~45 years of local climate history.</p>
       </div>
       <details class="nav-menu">