Added proxy hint

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

@@ -152,6 +152,18 @@
             app:layout_constraintBottom_toBottomOf="@id/etSocks"
             app:layout_constraintEnd_toEndOf="parent" />
 
+        <TextView
+            android:id="@+id/tvSocksHint"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="48dp"
+            android:text="@string/title_advanced_socks_hint"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/etSocks" />
+
         <Button
             android:id="@+id/btnManage"
             style="?android:attr/buttonStyleSmall"
@@ -162,7 +174,7 @@
             android:minHeight="0dp"
             android:text="@string/title_advanced_manage_connectivity"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/etSocks" />
+            app:layout_constraintTop_toBottomOf="@id/tvSocksHint" />
 
         <TextView
             android:id="@+id/tvConnectionType"

app/src/main/res/values/strings.xml

@@ -354,6 +354,7 @@
     <string name="title_advanced_metered_hint">Metered connections are generally mobile connections or paid Wi-Fi hotspots</string>
     <string name="title_advanced_metered_warning">Disabling this option will disable receiving and sending messages on mobile internet connections</string>
     <string name="title_advanced_rlah_hint">Assuming no roaming within the EU</string>
+    <string name="title_advanced_socks_hint">Using a remote proxy server is insecure because proxy connections are not encrypted</string>
     <string name="title_advanced_roaming_hint">Messages headers will always be fetched when roaming. You can use the device\'s roaming setting to disable internet while roaming.</string>
 
     <string name="title_advanced_browse_hint">Fetch more messages when scrolling down</string>