Fix blank window with NSGlassEffectView on macOS 26

Avoid Auto Layout reparenting of SwiftUI hosting view when applying glass; force HFS+ DMG so volume name mounts as cmuxterm.

.github/workflows/release.yml

@@ -161,7 +161,9 @@ jobs:
           STAGING_DIR="$(mktemp -d)"
           cp -R "$APP_PATH" "$STAGING_DIR/cmuxterm.app"
           ln -s /Applications "$STAGING_DIR/Applications"
-          hdiutil create -volname "cmuxterm" -srcfolder "$STAGING_DIR" -ov -format UDZO "$DMG_RELEASE"
+          # hdiutil defaults to APFS for -srcfolder images (volume name becomes "Untitled" on mount).
+          # Force HFS+ so the mounted volume name is stable and Finder shows the contents reliably.
+          hdiutil create -fs HFS+ -volname "cmuxterm" -srcfolder "$STAGING_DIR" -ov -format UDZO "$DMG_RELEASE"
           rm -rf "$STAGING_DIR"
           DMG_SUBMIT_JSON="$(xcrun notarytool submit "$DMG_RELEASE" --apple-id "$APPLE_ID" --team-id "$APPLE_TEAM_ID" --password "$APPLE_APP_SPECIFIC_PASSWORD" --wait --output-format json)"
           DMG_SUBMIT_ID="$(python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])' <<<"$DMG_SUBMIT_JSON")"

Sources/ContentView.swift

@@ -23,7 +23,9 @@ enum WindowGlassEffect {
 
         let bounds = contentView.bounds
 
-        // macOS 26+: Use NSGlassEffectView as the new contentView (full replacement is safe)
+        // macOS 26+: Prefer NSGlassEffectView. Avoid re-parenting the SwiftUI NSHostingView via
+        // constraints (it can result in a blank content area). Keep the original content view
+        // on autoresizing masks and just insert it into the glass view.
         if let glassClass = NSClassFromString("NSGlassEffectView") as? NSVisualEffectView.Type {
             let glassView = glassClass.init(frame: bounds)
             glassView.wantsLayer = true
@@ -37,21 +39,14 @@ enum WindowGlassEffect {
                 }
             }
 
-            // Replace contentView — safe on macOS 26+ where traffic lights composite above
             window.contentView = glassView
 
-            contentView.translatesAutoresizingMaskIntoConstraints = false
             contentView.wantsLayer = true
             contentView.layer?.backgroundColor = NSColor.clear.cgColor
+            contentView.frame = glassView.bounds
+            contentView.autoresizingMask = [.width, .height]
             glassView.addSubview(contentView)
 
-            NSLayoutConstraint.activate([
-                contentView.topAnchor.constraint(equalTo: glassView.topAnchor),
-                contentView.bottomAnchor.constraint(equalTo: glassView.bottomAnchor),
-                contentView.leadingAnchor.constraint(equalTo: glassView.leadingAnchor),
-                contentView.trailingAnchor.constraint(equalTo: glassView.trailingAnchor)
-            ])
-
             objc_setAssociatedObject(window, &glassViewKey, glassView, .OBJC_ASSOCIATION_RETAIN)
             return
         }