diff --git a/docs/footer.html b/docs/footer.html
index 5b48940605..efa3357e59 100644
--- a/docs/footer.html
+++ b/docs/footer.html
@@ -1,21 +1,17 @@
-<!-- HTML footer for doxygen 1.8.17-->
-<!-- start footer part -->
-<!--BEGIN GENERATE_TREEVIEW-->
-<div id="nav-path" class="navpath"> <!-- id is needed for treeview function! -->
-<!--END GENERATE_TREEVIEW-->
-<!--BEGIN !GENERATE_TREEVIEW-->
-<div> <!-- id unnecessary if treeview is not used -->
-<!--END !GENERATE_TREEVIEW-->
-  <hr size="2" />
-  <address style="text-align: center;">
-    <a href="https://www.unidata.ucar.edu/software/netcdf/">Return to the Main Unidata NetCDF page.</a><br>
-    <img src="./$relpath^/uniLogo.png">
-  </address>
-
-  <address style="text-align: right;"><small>
-    Generated on $datetime for $projectname. NetCDF is
-    a <a href="https://www.unidata.ucar.edu/">Unidata</a> library.</small>
-  </address>
-</div>
-</body>
-</html>
+<!-- HTML footer for doxygen 1.9.1-->
+<!-- start footer part -->
+<!--BEGIN GENERATE_TREEVIEW-->
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    $navpath
+    <li class="footer">$generatedby <a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion </li>
+  </ul>
+</div>
+<!--END GENERATE_TREEVIEW-->
+<!--BEGIN !GENERATE_TREEVIEW-->
+<hr class="footer"/><address class="footer"><small>
+$generatedby&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion
+</small></address>
+<!--END !GENERATE_TREEVIEW-->
+</body>
+</html>
diff --git a/docs/header.html b/docs/header.html
index af3a75a094..9c4751e637 100644
--- a/docs/header.html
+++ b/docs/header.html
@@ -1,88 +1,54 @@
-<!-- HTML header for doxygen 1.10.0-->
+<!-- HTML header for doxygen 1.9.1-->
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang="$langISO">
+<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
-<meta http-equiv="X-UA-Compatible" content="IE=11"/>
+<meta http-equiv="X-UA-Compatible" content="IE=9"/>
 <meta name="generator" content="Doxygen $doxygenversion"/>
 <meta name="viewport" content="width=device-width, initial-scale=1"/>
 <!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
 <!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
-<!--BEGIN PROJECT_ICON-->
-<link rel="icon" href="$relpath^$projecticon" type="image/x-icon" />
-<!--END PROJECT_ICON-->
 <link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
-<!--BEGIN DISABLE_INDEX-->
-  <!--BEGIN FULL_SIDEBAR-->
-<script type="text/javascript">var page_layout=1;</script>
-  <!--END FULL_SIDEBAR-->
-<!--END DISABLE_INDEX-->
 <script type="text/javascript" src="$relpath^jquery.js"></script>
 <script type="text/javascript" src="$relpath^dynsections.js"></script>
-<!--BEGIN COPY_CLIPBOARD-->
-<script type="text/javascript" src="$relpath^clipboard.js"></script>
-<!--END COPY_CLIPBOARD-->
 $treeview
 $search
 $mathjax
-$darkmode
 <link href="$relpath^$stylesheet" rel="stylesheet" type="text/css" />
 $extrastylesheet
-<html> 
-    <head>
-        <!-- ... other metadata & script includes ... -->
-        <script type="text/javascript" src="$relpath^doxygen-awesome-darkmode-toggle.js"></script>
-        <script type="text/javascript">
-            DoxygenAwesomeDarkModeToggle.init()
-        </script>
-    </head>
-    <body>
-
 </head>
 <body>
-<!--BEGIN DISABLE_INDEX-->
-  <!--BEGIN FULL_SIDEBAR-->
-<div id="side-nav" class="ui-resizable side-nav-resizable"><!-- do not remove this div, it is closed by doxygen! -->
-  <!--END FULL_SIDEBAR-->
-<!--END DISABLE_INDEX-->
-
 <div id="top"><!-- do not remove this div, it is closed by doxygen! -->
 
 <!--BEGIN TITLEAREA-->
 <div id="titlearea">
 <table cellspacing="0" cellpadding="0">
  <tbody>
- <tr id="projectrow">
+ <tr style="height: 56px;">
   <!--BEGIN PROJECT_LOGO-->
-  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"$logosize/></td>
+  <td id="projectlogo"><img alt="Logo" src="$relpath^$projectlogo"/></td>
   <!--END PROJECT_LOGO-->
   <!--BEGIN PROJECT_NAME-->
-  <td id="projectalign">
-   <div id="projectname">$projectname<!--BEGIN PROJECT_NUMBER--><span id="projectnumber">&#160;$projectnumber</span><!--END PROJECT_NUMBER-->
+  <td id="projectalign" style="padding-left: 0.5em;">
+   <div id="projectname">$projectname
+   <!--BEGIN PROJECT_NUMBER-->&#160;<span id="projectnumber">$projectnumber</span><!--END PROJECT_NUMBER-->
    </div>
    <!--BEGIN PROJECT_BRIEF--><div id="projectbrief">$projectbrief</div><!--END PROJECT_BRIEF-->
   </td>
   <!--END PROJECT_NAME-->
   <!--BEGIN !PROJECT_NAME-->
    <!--BEGIN PROJECT_BRIEF-->
-    <td>
+    <td style="padding-left: 0.5em;">
     <div id="projectbrief">$projectbrief</div>
     </td>
    <!--END PROJECT_BRIEF-->
   <!--END !PROJECT_NAME-->
   <!--BEGIN DISABLE_INDEX-->
    <!--BEGIN SEARCHENGINE-->
-     <!--BEGIN !FULL_SIDEBAR-->
-    <td>$searchbox</td>
-     <!--END !FULL_SIDEBAR-->
+   <td>$searchbox</td>
    <!--END SEARCHENGINE-->
   <!--END DISABLE_INDEX-->
  </tr>
-  <!--BEGIN SEARCHENGINE-->
-   <!--BEGIN FULL_SIDEBAR-->
-   <tr><td colspan="2">$searchbox</td></tr>
-   <!--END FULL_SIDEBAR-->
-  <!--END SEARCHENGINE-->
  </tbody>
 </table>
 </div>
