Use glass background for tvOS player settings sheet

Match the info/comments and queue panels by replacing the black dim and
inner rounded card with a full-screen ultraThinMaterial backdrop and a
transparent list background on tvOS.

Yattee/Views/Player/QualitySelectorView+Sections.swift

@@ -206,7 +206,11 @@ extension QualitySelectorView {
             }
             .padding()
         }
+        #if os(tvOS)
+        .background(Color.clear)
+        #else
         .background(ListBackgroundStyle.grouped.color)
+        #endif
         .navigationTitle(String(localized: "player.quality.video"))
         #if os(iOS)
         .navigationBarTitleDisplayMode(.inline)
@@ -221,7 +225,11 @@ extension QualitySelectorView {
             }
             .padding()
         }
+        #if os(tvOS)
+        .background(Color.clear)
+        #else
         .background(ListBackgroundStyle.grouped.color)
+        #endif
         .navigationTitle(String(localized: "stream.audio"))
         #if os(iOS)
         .navigationBarTitleDisplayMode(.inline)
@@ -236,7 +244,11 @@ extension QualitySelectorView {
             }
             .padding()
         }
+        #if os(tvOS)
+        .background(Color.clear)
+        #else
         .background(ListBackgroundStyle.grouped.color)
+        #endif
         .navigationTitle(String(localized: "stream.subtitles"))
         #if os(iOS)
         .navigationBarTitleDisplayMode(.inline)

Yattee/Views/Player/QualitySelectorView.swift

@@ -186,7 +186,14 @@ struct QualitySelectorView: View {
                     streamsContent
                 }
             }
+            #if os(tvOS)
+            // On tvOS the quality sheet is presented over the player with an outer
+            // ultraThinMaterial backdrop (see TVPlayerView.qualitySheetContent), so
+            // the list itself must be transparent to let the glass show through.
+            .background(Color.clear)
+            #else
             .background(ListBackgroundStyle.grouped.color)
+            #endif
             .navigationTitle(navigationTitle)
             #if os(iOS)
             .navigationBarTitleDisplayMode(.inline)

Yattee/Views/Player/tvOS/TVPlayerView.swift

@@ -133,8 +133,9 @@ struct TVPlayerView: View {
             let supportedFormats = playerService.currentBackendType.supportedFormats
 
             ZStack {
-                // Dimmed backdrop over the video
-                Color.black.opacity(0.7)
+                // Glass backdrop — matches info/comments panel for visual uniformity
+                Rectangle()
+                    .fill(.ultraThinMaterial)
                     .ignoresSafeArea()
 
                 QualitySelectorView(
@@ -179,10 +180,6 @@ struct TVPlayerView: View {
                     }
                 )
                 .frame(maxWidth: 900, maxHeight: 700)
-                .background(
-                    RoundedRectangle(cornerRadius: 24, style: .continuous)
-                        .fill(.ultraThinMaterial)
-                )
                 .padding(.horizontal, 200)
                 .padding(.vertical, 80)
             }