minor macOS 26 UI updates

Author: mlink

.github/workflows/swift.yml

@@ -12,7 +12,7 @@ on:
 jobs:
   build:
 
-    runs-on: macos-15
+    runs-on: macos-latest
 
     steps:
     - uses: maxim-lobanov/setup-xcode@v1

DIExample.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -42,8 +42,11 @@ struct PostListView14: View {
         .navigationTitle("Posts14")
         .toolbar {
             ToolbarItem(placement: .automatic) {
-                Text("\(viewModel.secondsSinceLastRefresh)")
+                Text("\(viewModel.secondsSinceLastRefresh, format: .number)")
+                    .fontDesign(.monospaced)
             }
+            .hideSharedBackgroundIfAvailable()
+
             ToolbarItem(placement: .automatic) {
                 Button {
                     viewModel.refresh()
@@ -61,6 +64,16 @@ struct PostListView14: View {
     }
 }
 
+extension ToolbarContent {
+    @ToolbarContentBuilder func hideSharedBackgroundIfAvailable() -> some ToolbarContent {
+        if #available(macOS 26.0, *) {
+            sharedBackgroundVisibility(.hidden)
+        } else {
+            self
+        }
+    }
+}
+
 #if DEBUG
 import Combine
 import Factory