fix #56545

src/vs/base/browser/ui/breadcrumbs/breadcrumbsWidget.css

@@ -27,7 +27,6 @@
 	background-image: url(./collapsed.svg);
 	opacity: .7;
 	width: 16px;
-	min-width: 16px;
 	height: 16px;
 	display: inline-block;
 	background-size: 16px;

src/vs/workbench/browser/parts/editor/media/tabstitlecontrol.css

@@ -265,6 +265,7 @@
 
 .monaco-workbench > .part.editor > .content .editor-group-container > .title .tabs-breadcrumbs .breadcrumbs-control .monaco-icon-label::before {
 	height: 18px; /* tweak the icon size of the editor labels when icons are enabled */
+	min-width: 16px;
 }
 
 .monaco-workbench > .part.editor > .content .editor-group-container > .title .tabs-breadcrumbs  .breadcrumbs-control .monaco-breadcrumb-item {