fix(widget): blank app icons

Signed-off-by: Mod4 <omarelfarok24135@gmail.com>
Co-authored-by: mahee96 <47920326+mahee96@users.noreply.github.com>

AltWidget/Extensions/View+AltWidget.swift

@@ -7,6 +7,7 @@
 //
 
 import SwiftUI
+import WidgetKit
 
 extension View
 {
@@ -78,4 +79,59 @@ extension View
         }
     }
 
+    /// Opts this view into the widget accent group on iOS 16+, which lets the
+    /// system tint it with the user's chosen colour in tinted (accented) mode.
+    /// No-op on older OS versions where the API does not exist.
+    @ViewBuilder
+    func widgetAccentableIfAvailable() -> some View
+    {
+        if #available(iOSApplicationExtension 16, *)
+        {
+            self.widgetAccentable()
+        }
+        else
+        {
+            self
+        }
+    }
+
+    /// Applies `luminanceToAlpha()` only when the widget is rendering in
+    /// accented (tinted) mode on iOS 16+. This converts the view's pixel
+    /// brightness into opacity so the system can overlay the user's chosen
+    /// tint colour correctly — without it, images appear as white rectangles
+    /// in tinted mode. No-op in fullColor/dark/light mode and on older OS.
+    @ViewBuilder
+    func luminanceToAlphaInAccentedMode() -> some View
+    {
+        if #available(iOSApplicationExtension 16, *)
+        {
+            LuminanceToAlphaWrapper(content: self)
+        }
+        else
+        {
+            self
+        }
+    }
+
+}
+
+/// Helper view that reads widgetRenderingMode (iOS 16+) and conditionally
+/// applies luminanceToAlpha(). Kept separate so the environment read is
+/// cleanly scoped behind the @available gate.
+@available(iOSApplicationExtension 16, *)
+private struct LuminanceToAlphaWrapper<Content: View>: View
+{
+    let content: Content
+    @Environment(\.widgetRenderingMode) private var renderingMode
+
+    var body: some View {
+        if renderingMode == .accented
+        {
+            content.luminanceToAlpha()
+        }
+        else
+        {
+            content
+        }
+    }
 }