DevTools: [Workspace] show network files in navigator

third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css

Index: third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css b/third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css
index 6072412f806fb46c4fc4fdb347a2927670e05a45..0f08792d095e4a4889a732e66a5d516e19012048 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css
+++ b/third_party/WebKit/Source/devtools/front_end/sources/navigatorView.css
@@ -46,6 +46,17 @@
     background: linear-gradient(45deg, hsl(0, 0%, 50%), hsl(0, 0%, 70%));
 }
 
+.navigator-fs-tree-item:not(.has-mapped-files),
+.navigator-fs-folder-tree-item:not(.has-mapped-files) {
+    filter: grayscale(50%);
+    opacity: 0.5;
+}
+
+.mapped-file-bubble {
+    color: green;
+    margin-left: 2px;
+}
+
 :focus .navigator-file-tree-item.selected .icon {
     background: white !important;
 }