Found The "Real Cause"

Author: thecoolwinter

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorViewController+NSOutlineViewDelegate.swift

@@ -181,17 +181,4 @@ extension ProjectNavigatorViewController: NSOutlineViewDelegate {
         }
         return ""
     }
-
-    func outlineView(_ outlineView: NSOutlineView, tintConfigurationForItem item: Any) -> NSTintConfiguration? {
-        NSTintConfiguration(fixedColor: NSColor(name: nil, dynamicProvider: { appearance in
-            switch appearance.name {
-            case .darkAqua, .vibrantDark:
-                    .white
-            case .aqua, .vibrantLight:
-                    .black
-            default:
-                    .black
-            }
-        }))
-    }
 }

CodeEdit/Features/NavigatorArea/ProjectNavigator/OutlineView/ProjectNavigatorViewController.swift

@@ -77,6 +77,7 @@ final class ProjectNavigatorViewController: NSViewController {
         self.view = scrollView
 
         self.outlineView = ProjectNavigatorNSOutlineView()
+        self.outlineView.style = .inset
         self.outlineView.dataSource = self
         self.outlineView.delegate = self
         self.outlineView.autosaveExpandedItems = true

CodeEdit/Features/NavigatorArea/Views/NavigatorAreaView.swift

@@ -50,6 +50,7 @@ struct NavigatorAreaView: View {
                 viewModel.selectedTab?.bottomView(workspace: workspace)
             }
         )
+        .listStyle(.inset)
         .environmentObject(workspace)
         .accessibilityElement(children: .contain)
         .accessibilityLabel("navigator")