diff --git a/alternative_user_files/userContent_no_addons.css b/alternative_user_files/userContent_no_addons.css
index 4916607..56dc15b 100644
--- a/alternative_user_files/userContent_no_addons.css
+++ b/alternative_user_files/userContent_no_addons.css
@@ -808,11 +808,12 @@ url-prefix(https://discovery.addons.mozilla.org) {
     background-color: var(--theme-selection-background-hover)!important;
     border-bottom: 1px solid!important
   }
-  #sidebarContainer {
-    background-color: var(--in-content-table-header-background)!important
+  #sidebarContainer,
+  #sidebarContent {
+    background-color: var(--in-content-page-background)!important
   }
   #toolbarSidebar {
-    background-color: var(--in-content-table-header-background)!important;
+    background-color: var(--in-content-category-header-background)!important;
     background-image: none!important;
     border-color: var(--in-content-box-background)!important
   }
diff --git a/userContent-files/pdf.css b/userContent-files/pdf.css
index 23f9446..3766065 100644
--- a/userContent-files/pdf.css
+++ b/userContent-files/pdf.css
@@ -39,11 +39,12 @@
     background-color: var(--theme-selection-background-hover)!important;
     border-bottom: 1px solid!important
   }
-  #sidebarContainer {
-    background-color: var(--in-content-table-header-background)!important
+  #sidebarContainer,
+  #sidebarContent {
+    background-color: var(--in-content-page-background)!important
   }
   #toolbarSidebar {
-    background-color: var(--in-content-table-header-background)!important;
+    background-color: var(--in-content-category-header-background)!important;
     background-image: none!important;
     border-color: var(--in-content-box-background)!important
   }
diff --git a/userContent.css b/userContent.css
index 4fab8e5..a74d51b 100644
--- a/userContent.css
+++ b/userContent.css
@@ -808,11 +808,12 @@ url-prefix(https://discovery.addons.mozilla.org) {
     background-color: var(--theme-selection-background-hover)!important;
     border-bottom: 1px solid!important
   }
-  #sidebarContainer {
-    background-color: var(--in-content-table-header-background)!important
+  #sidebarContainer,
+  #sidebarContent {
+    background-color: var(--in-content-page-background)!important
   }
   #toolbarSidebar {
-    background-color: var(--in-content-table-header-background)!important;
+    background-color: var(--in-content-category-header-background)!important;
     background-image: none!important;
     border-color: var(--in-content-box-background)!important
   }