Updated the Sample app and Widget targets in the Xcode project to make the app works for visionOS.

Packages/Features/Sources/Recording/Styles/Buttons/RecordingButtonStyle.swift

@@ -3,7 +3,8 @@ import SwiftUI
 /// The button style for the controls of a ``RecordingView``.
 ///
 /// The style renders the button's label in the primary foreground color over a padded, circular Liquid Glass background — tinted by
-/// the color given at initialization — that reacts fluidly to presses. The whole button dims while disabled, and both the label and its
+/// the color given at initialization — that reacts fluidly to presses. On visionOS, where Liquid Glass is unavailable, the background is
+/// the platform's own glass material overlaid with the tint color. The whole button dims while disabled, and both the label and its
 /// padding scale relative to the current dynamic type size.
 struct RecordingButtonStyle: ButtonStyle {
 
@@ -52,6 +53,14 @@ struct RecordingButtonStyle: ButtonStyle {
             .padding(padding)
             .scaledToFit()
             .foregroundStyle(.primary.opacity(opacity))
+            #if os(visionOS)
+            .background(
+                tintColor.opacity(Constant.Opacity.tint),
+                in: .circle
+            )
+            .glassBackgroundEffect(in: .circle)
+            .opacity(opacity)
+            #else
             .glassEffect(
                 .regular
                     .tint(tintColor)
@@ -59,6 +68,7 @@ struct RecordingButtonStyle: ButtonStyle {
                 in: .circle
             )
             .opacity(opacity)
+            #endif
     }
 
 }
@@ -108,6 +118,8 @@ private enum Constant {
         static let disabled: Double = 0.5
         /// The opacity of an enabled button.
         static let enabled: Double = 1
+        /// The opacity of the tint color laid over the glass background on visionOS.
+        static let tint: Double = 0.5
     }
 
     /// The padding constants.