diff --git a/src/main/resources/static/css/dark/style.css b/src/main/resources/static/css/dark/style.css
index 50525125a2335ee70ee0c617c7fe7078c193b30e..ce973ef396d7788c9eaaca57bf61e91ca8574505 100644
--- a/src/main/resources/static/css/dark/style.css
+++ b/src/main/resources/static/css/dark/style.css
@@ -525,6 +525,11 @@ input[type="radio"]:not(:checked) + span::before, [type="radio"]:not(:checked) +
     color: #777777 !important;
 }
 
+/* mark navbar entry "chart" as not available */
+.home-menu-disabled > li > a > i {
+    color: #777777 !important;
+}
+
 .home-menu-text {
     padding-left: 16px;
     margin-top: 2rem;
diff --git a/src/main/resources/static/css/style.css b/src/main/resources/static/css/style.css
index 31d3109014a6508643d9f1f8e7e69a6cb4cd3f01..370e57e59cd59fed2f9c47d181de9494dfed607f 100644
--- a/src/main/resources/static/css/style.css
+++ b/src/main/resources/static/css/style.css
@@ -450,6 +450,11 @@ input[type="radio"]:checked + span::after, [type="radio"].with-gap:checked + spa
     color: #AAAAAA !important;
 }
 
+/* mark navbar entry "chart" as not available */
+.home-menu-disabled > li > a > i {
+    color: #AAAAAA !important;
+}
+
 .home-menu-text {
     padding-left: 16px;
     margin-top: 2rem;
diff --git a/src/main/resources/templates/helpers/navbar.ftl b/src/main/resources/templates/helpers/navbar.ftl
index 31c2b7dda1ef0f4991eae0c83e00c6b0643333b4..6c9a92794a8c93d3d5b0e086050bd7c34eb7a99c 100644
--- a/src/main/resources/templates/helpers/navbar.ftl
+++ b/src/main/resources/templates/helpers/navbar.ftl
@@ -115,7 +115,7 @@
 
 <#macro subListStart ID text icon activeColor activeID>
 <li>
-    <ul class="collapsible collapsible-accordion no-padding sidenav-sub">
+    <ul class="collapsible collapsible-accordion no-padding sidenav-sub home-menu-disabled">
         <li>
             <#if activeID?starts_with(ID)>
                 <a href="<@s.url '/charts'/>" class="collapsible-header no-padding active"><div class="stripe ${activeColor}"></div><i class="material-icons">${icon}</i>${text}</a>