Somewhat working file tray

DynamicIsland/components/Shelf/Views/DragPreviewView.swift

@@ -0,0 +1,29 @@
+import SwiftUI
+import AppKit
+
+struct DragPreviewView: View {
+    let thumbnail: NSImage?
+    let displayName: String
+
+    var body: some View {
+        VStack(alignment: .center, spacing: 4) {
+            Image(nsImage: thumbnail ?? NSImage())
+                .resizable()
+                .aspectRatio(contentMode: .fit)
+                .frame(width: 56, height: 56)
+                .clipShape(RoundedRectangle(cornerRadius: 12))
+
+            Text(displayName)
+                .font(.system(size: 12, weight: .medium))
+                .foregroundColor(.white)
+                .lineLimit(2)
+                .truncationMode(.middle)
+                .multilineTextAlignment(.center)
+                .padding(.horizontal, 8)
+                .padding(.vertical, 2)
+                .background(RoundedRectangle(cornerRadius: 4).fill(Color.accentColor))
+                .frame(alignment: .top)
+        }
+        .frame(width: 105)
+    }
+}