diff --git a/packages/core/src/browser/style/menus.css b/packages/core/src/browser/style/menus.css
index 438ab0641702d..ed0a4d2e209ea 100644
--- a/packages/core/src/browser/style/menus.css
+++ b/packages/core/src/browser/style/menus.css
@@ -160,13 +160,14 @@
 
 .p-Menu-itemSubmenuIcon {
   width: var(--theia-icon-size);
-  padding: 0px 4px 0px 0px;
+  padding: 0px 10px 0px 0px;
 }
 
 
 .p-Menu-item[data-type='separator'] > div {
   padding: 0;
   height: 9px;
+  opacity: 0.36;
 }
 
 
@@ -178,6 +179,14 @@
   border-top: var(--theia-border-width) solid var(--theia-menu-separatorBackground);
 }
 
+.p-Menu-item[data-type='separator'] > div.p-Menu-itemIcon::after {
+  margin-left: 12px;
+}
+
+.p-Menu-item[data-type='separator'] > div.p-Menu-itemSubmenuIcon::after {
+  margin-right: 12px;
+}
+
 .p-Menu-itemIcon::before,
 .p-Menu-itemSubmenuIcon::before {
   font: normal normal normal 16px/1 codicon;