Aperture: Add tint to capture preview buttons

Fixes: https://gitlab.com/LineageOS/issues/android/-/issues/6873
Change-Id: Ic76415094232e3dcf6b69f91c6209e0f0788b16a
diff --git a/app/src/main/res/layout/capture_preview_layout.xml b/app/src/main/res/layout/capture_preview_layout.xml
index 3ab6553..169b0fd 100644
--- a/app/src/main/res/layout/capture_preview_layout.xml
+++ b/app/src/main/res/layout/capture_preview_layout.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-     SPDX-FileCopyrightText: 2022 The LineageOS Project
+     SPDX-FileCopyrightText: 2022-2024 The LineageOS Project
      SPDX-License-Identifier: Apache-2.0
 -->
 <org.lineageos.aperture.ui.CapturePreviewLayout xmlns:android="http://schemas.android.com/apk/res/android"
@@ -28,7 +28,8 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toEndOf="@+id/cancelButton"
-            app:layout_constraintTop_toTopOf="parent" />
+            app:layout_constraintTop_toTopOf="parent"
+            app:tint="@android:color/white" />
 
         <ImageButton
             android:id="@+id/cancelButton"
@@ -41,7 +42,9 @@
             app:layout_constraintEnd_toStartOf="@+id/confirmButton"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent" />
+            app:layout_constraintTop_toTopOf="parent"
+            app:tint="@android:color/white"/>
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 
     <androidx.constraintlayout.widget.ConstraintLayout