Added plain text part warning

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

@@ -302,6 +302,20 @@
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toBottomOf="@id/swDownloadPlain" />
 
+                <TextView
+                    android:id="@+id/tvPlainRemark"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="6dp"
+                    android:layout_marginEnd="48dp"
+                    android:text="@string/title_advanced_plain_remark"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                    android:textColor="?attr/colorWarning"
+                    android:textStyle="italic"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/tvPlainHint" />
+
                 <androidx.appcompat.widget.SwitchCompat
                     android:id="@+id/swValidated"
                     android:layout_width="0dp"
@@ -310,7 +324,7 @@
                     android:text="@string/title_advanced_validated"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/tvPlainHint"
+                    app:layout_constraintTop_toBottomOf="@id/tvPlainRemark"
                     app:switchPadding="12dp" />
 
                 <androidx.appcompat.widget.SwitchCompat

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

@@ -1028,6 +1028,7 @@
     <string name="title_advanced_rlah_hint">Assuming no roaming within the EU</string>
     <string name="title_advanced_usage_hint">This will increase battery, data and storage space usage</string>
     <string name="title_advanced_plain_hint">Enabling this will limit data usage, but messages will be shown without styling</string>
+    <string name="title_advanced_plain_remark">The plain text part does not always contain the full message!</string>
     <string name="title_advanced_tcp_keep_alive_hint">Enabling this can cause connection problems on some devices and may increase battery usage</string>
     <string name="title_advanced_validate_hint">This can result in not synchronizing messages, for example when using a VPN, but also in other situations</string>
     <string name="title_advanced_timeout_hint">The read/write timeout will be set to the double of the connection timeout. Higher values will result in more battery use.</string>