Add selectable background to omnibar type selection

Author: 0nko

app/src/main/res/layout/activity_appearance.xml

@@ -112,8 +112,8 @@
                 android:id="@+id/omnibarTypeToggleContainer"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_marginTop="@dimen/keyline_3"
-                android:layout_marginBottom="@dimen/keyline_4"
+                android:layout_marginTop="@dimen/keyline_1"
+                android:layout_marginBottom="@dimen/keyline_2"
                 android:layout_marginHorizontal="@dimen/keyline_4">
 
                 <LinearLayout
@@ -122,6 +122,8 @@
                     android:layout_height="wrap_content"
                     android:gravity="center"
                     android:orientation="vertical"
+                    android:padding="@dimen/keyline_2"
+                    android:background="@drawable/selectable_rounded_ripple"
                     app:layout_constraintWidth_max="160dp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toStartOf="@+id/bottomOmnibarContainer"
@@ -163,7 +165,9 @@
                     android:layout_marginStart="@dimen/inputScreenUserPrefToggleSpacing"
                     android:gravity="center"
                     android:orientation="vertical"
+                    android:padding="@dimen/keyline_2"
                     app:layout_constraintWidth_max="160dp"
+                    android:background="@drawable/selectable_rounded_ripple"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toStartOf="@+id/splitOmnibarContainer"
                     app:layout_constraintStart_toEndOf="@+id/topOmnibarContainer"
@@ -209,8 +213,10 @@
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="@dimen/inputScreenUserPrefToggleSpacing"
+                    android:padding="@dimen/keyline_2"
                     android:gravity="center"
                     android:orientation="vertical"
+                    android:background="@drawable/selectable_rounded_ripple"
                     app:layout_constraintWidth_max="160dp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"