Small layout improvement

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

@@ -29,7 +29,7 @@
             android:padding="6dp"
             android:text="@string/title_pro_support"
             android:textAppearance="@style/TextAppearance.AppCompat.Small"
-            android:textColor="?attr/colorWarning"
+            android:textColor="?android:attr/textColorPrimary"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />