Added hint text

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

@@ -3,6 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:fadeScrollbars="false"
     android:padding="24dp"
     android:scrollbarStyle="outsideOverlay">
 
@@ -32,6 +33,17 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvImportant" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvSyncNote"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_hint_sync_note"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textColor="?android:attr/textColorPrimary"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvSync" />
+
         <eu.faircode.email.FixedTextView
             android:id="@+id/tvBattery"
             android:layout_width="wrap_content"
@@ -41,7 +53,7 @@
             android:textAppearance="@style/TextAppearance.AppCompat.Small"
             android:textColor="?android:attr/textColorPrimary"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvSync" />
+            app:layout_constraintTop_toBottomOf="@id/tvSyncNote" />
 
         <Button
             android:id="@+id/btnBatteryInfo"

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

@@ -1355,6 +1355,7 @@
     <string name="title_hint_message_selection">Long press a message to start selecting multiple messages; Hold and swipe up or down to select more messages</string>
     <string name="title_hint_important">Important</string>
     <string name="title_hint_sync">Downloading messages can take some time, depending on the speed of the provider, internet connection, the device and on the number of messages. While downloading messages the app might respond slower.</string>
+    <string name="title_hint_sync_note">By default, not all messages will be downloaded to limit storage space and battery and data usage. You can change this by long pressing a folder in the folder list and selecting \'Synchronize more\'.</string>
     <string name="title_hint_battery">Since FairEmail by default always receives messages, Android will report FairEmail as always being active. Therefore it might look as if FairEmail is always consuming battery power although this is in fact not the case.</string>
     <string name="title_hint_reformat">By default, FairEmail reformats messages for privacy and security reasons. To view the original message, tap the \'full screen\' icon above the message text.</string>
     <string name="title_hint_design">The design is intentionally not distracting, but kept highly functional. There are many options to customize the appearance, but please understand that it is impossible to make everybody completely happy at the same time.</string>