Update activity_food_detail.xml

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

@@ -46,6 +46,7 @@
             android:onClick="returnHome"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            style="@style/Widget.AppCompat.Button.Colored"
             android:text="Return"/>
 
     </LinearLayout>