Fix header button colors, advert interval

repeater-setup.html

@@ -299,8 +299,8 @@
     <p>A repeater is the fixed radio that stays installed to relay traffic for the mesh. A companion is a second node you use to reach and manage that repeater from the MeshCore mobile app. The flow here is: build if needed, flash and configure over USB, test companion-based setup, then deploy the node.</p>
 
     <div class="button-row">
-      <a class="btn btn-accent" href="https://flasher.meshcore.io/" target="_blank">Open MeshCore Flasher</a>
-      <a class="btn btn-accent" href="https://www.amazon.com/hz/wishlist/ls/2CMP31ZQIM9JD?ref_=wl_share" target="_blank">Repeater Parts List</a>
+      <a class="btn" href="https://flasher.meshcore.io/" target="_blank">Open MeshCore Flasher</a>
+      <a class="btn" href="https://www.amazon.com/hz/wishlist/ls/2CMP31ZQIM9JD?ref_=wl_share" target="_blank">Repeater Parts List</a>
     </div>
 
     <h2>Table of Contents</h2>
@@ -441,7 +441,7 @@
       <ul>
         <li>You can leave location blank for privacy reasons.</li>
         <li>If you change the frequency, bandwidth, or spreading factor, the repeater will no longer communicate with nodes on the public mesh, which is usually not what you want.</li>
-        <li>For the public mesh, set <strong>Flood advert interval (hours)</strong> to <strong>48</strong>. The UI may default lower, such as <strong>12</strong>, so change it before saving.</li>
+        <li>For the public mesh, set <strong>Flood advert interval (hours)</strong> to <strong>47</strong>. The UI may default lower, such as <strong>12</strong>, so change it before saving.</li>
       </ul>
     </div>