diff --git a/css/userContent-files/webextension-tweaks/generic_style.css b/css/userContent-files/webextension-tweaks/generic_style.css
index 7588140..a4df95d 100644
--- a/css/userContent-files/webextension-tweaks/generic_style.css
+++ b/css/userContent-files/webextension-tweaks/generic_style.css
@@ -154,6 +154,9 @@ url-prefix("moz-extension://greasemonkey_UUID/src/content/edit-user-script") {
   div.CodeMirror-selected {
     background: var(--cm-selection)!important
   }
+  div.CodeMirror-selected {
+    background: #353b48!important
+  }
   .CodeMirror-gutters {
     background: var(--theme-sidebar-background)!important;
     border-right: 0 solid!important
diff --git a/userContent.css b/userContent.css
index db89c2b..09a993f 100644
--- a/userContent.css
+++ b/userContent.css
@@ -1249,6 +1249,9 @@ url-prefix("moz-extension://greasemonkey_UUID/src/content/edit-user-script") {
   div.CodeMirror-selected {
     background: var(--cm-selection)!important
   }
+  div.CodeMirror-selected {
+    background: #353b48!important
+  }
   .CodeMirror-gutters {
     background: var(--theme-sidebar-background)!important;
     border-right: 0 solid!important