diff --git a/AnkiDroid/src/main/res/values/02-strings.xml b/AnkiDroid/src/main/res/values/02-strings.xml
index f3af99ec59..a1d5ab2fb4 100644
--- a/AnkiDroid/src/main/res/values/02-strings.xml
+++ b/AnkiDroid/src/main/res/values/02-strings.xml
@@ -18,6 +18,9 @@
 ~ You should have received a copy of the GNU General Public License along with
 ~ this program.  If not, see <http://www.gnu.org/licenses/>.
 --><resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- How to format a percentage shown in the summary field of a preference -->
+    <string name="preference_summary_percentage">XXX%</string>
+
     <!-- Navigation drawer strings -->
     <string name="drawer_open">Open drawer</string>
     <string name="drawer_close">Close drawer</string>
diff --git a/AnkiDroid/src/main/res/values/10-preferences.xml b/AnkiDroid/src/main/res/values/10-preferences.xml
index 8e62e2a4a1..d7efc477cf 100644
--- a/AnkiDroid/src/main/res/values/10-preferences.xml
+++ b/AnkiDroid/src/main/res/values/10-preferences.xml
@@ -43,7 +43,6 @@
 
     <!-- preferences.xml entries-->
     <string name="whiteboard_stroke_width">Stroke width</string>
-    <string name="whiteboard_stroke_width_summ">XXX</string>
     <string name="whiteboard_black">Black strokes</string>
     <string name="whiteboard_black_summ">Uses less memory, unless in night mode</string>
     <string name="write_answers_disable">Disable typing in answer</string>
@@ -51,21 +50,15 @@
     <string name="text_selection_click">Long press workaround</string>
     <string name="text_selection_click_summ">Enable this if you are not able to select text with a long press</string>
     <string name="dictionary">Lookup dictionary</string>
-    <string name="dictionary_summ">XXX</string>
     <string name="reset_languages">Reset languages</string>
     <string name="reset_languages_summ">Reset language assignments (for text to speech and dictionaries) for all decks. Reset specific deck assignments on deck picker.</string>
     <string name="reset_languages_question">Reset all language assignments?</string>
     <string name="reset_confirmation">All states reset</string>
     <string name="card_zoom">Card zoom</string>
-    <string name="card_zoom_summ">XXX%</string>
     <string name="image_zoom">Image zoom</string>
-    <string name="image_zoom_summ">XXX%</string>
     <string name="button_size">Answer button size</string>
-    <string name="button_size_summ">XXX%</string>
     <string name="card_browser_font_size">Card browser font scaling</string>
-    <string name="card_browser_font_size_summ">XXX%</string>
     <string name="col_path">Collection path</string>
-    <string name="col_path_summ">XXX</string>
     <string name="fullscreen_review">Fullscreen mode</string>
     <string name="fullscreen_review_summ">Hide the system status bar</string>
     <string name="gestures">Enable gestures</string>
@@ -84,7 +77,6 @@
     <string name="double_scrolling_gap">Double scrolling</string>
     <string name="double_scrolling_gap_summ">Double the scroll gap with eReader</string>
     <string name="swipe_sensitivity">Swipe sensitivity</string>
-    <string name="swipe_sensitivity_summ">XXX</string>
     <string name="tts">Text to speech</string>
     <string name="tts_summ">Reads out question and answer if no sound file is included</string>
     <string name="sync_fetch_missing_media">Fetch media on sync</string>
@@ -97,11 +89,8 @@
     <string name="fix_hebrew_instructions">This setting bypasses the RTL algorithm of Android to show Hebrew text with vowels correctly.\n\nFor this to work, you need to download font Tohu.ttf and copy it manually to\n“%s/fonts/”\n\nYou won’t have to modify your cards.</string>
     <string name="fix_hebrew_download_font">Download font</string>
     <string name="default_font">Default font</string>
-    <string name="default_font_summ">XXX</string>
     <string name="override_font">Default font applicability</string>
-    <string name="override_font_summ">XXX</string>
     <string name="language">Language</string>
-    <string name="language_summ">XXX</string>
     <string name="language_system">System language</string>
     <string name="notification_pref">Notifications</string>
     <string name="notification_pref_title">Notify when</string>
@@ -122,7 +111,6 @@
     <string name="vertical_centering">Center align</string>
     <string name="vertical_centering_summ">Center the content of cards vertically</string>
     <string name="pref_backup_max">Max number of backups</string>
-    <string name="pref_backup_max_summ">XXX</string>
     <string name="show_estimates">Show button time</string>
     <string name="show_estimates_summ">Show next review time on answer buttons</string>
     <string name="show_progress">Show remaining</string>
@@ -204,7 +192,6 @@
     <string name="deck_conf_set_subdecks_title">Set for all subdecks</string>
     <string name="deck_conf_set_subdecks_message">Set current options group for all of this deck’s subdecks?</string>
     <string name="pref_browser_editor_font">Browser and editor font</string>
-    <string name="pref_browser_editor_font_summ">XXX</string>
     <string name="deck_conf_cram_filter">Filter</string>
     <string name="deck_conf_cram_options">Options</string>
     <string name="deck_conf_cram_search">Search</string>
diff --git a/AnkiDroid/src/main/res/values/constants.xml b/AnkiDroid/src/main/res/values/constants.xml
index fe571ce54f..0d44ff5efb 100644
--- a/AnkiDroid/src/main/res/values/constants.xml
+++ b/AnkiDroid/src/main/res/values/constants.xml
@@ -21,6 +21,8 @@
     -->
     <!-- App name -->
     <string name="app_name">AnkiDroid</string>
+    <!-- Text to be shown in preference summary -->
+    <string name="preference_summary_literal">XXX</string>
     <!-- Used in deck preferences -->
     <string-array name="dictionary_labels">
         <item>None</item>
diff --git a/AnkiDroid/src/main/res/xml/preferences_advanced.xml b/AnkiDroid/src/main/res/xml/preferences_advanced.xml
index 90ffbb84e7..65c75437a7 100644
--- a/AnkiDroid/src/main/res/xml/preferences_advanced.xml
+++ b/AnkiDroid/src/main/res/xml/preferences_advanced.xml
@@ -35,7 +35,7 @@
                 android:defaultValue="8"
                 android:key="backupMax"
                 android:max="10"
-                android:summary="@string/pref_backup_max_summ"
+                android:summary="@string/preference_summary_literal"
                 android:text=""
                 android:title="@string/pref_backup_max"
                 app:interval="1"
@@ -83,7 +83,7 @@
                 android:entries="@array/dictionary_labels"
                 android:entryValues="@array/dictionary_values"
                 android:key="dictionary"
-                android:summary="@string/dictionary_summ"
+                android:summary="@string/preference_summary_literal"
                 android:title="@string/dictionary" />
             <com.ichi2.preferences.CustomDialogPreference
                 android:dialogIcon="@android:drawable/ic_dialog_alert"
diff --git a/AnkiDroid/src/main/res/xml/preferences_fonts.xml b/AnkiDroid/src/main/res/xml/preferences_fonts.xml
index f784a49134..1badf0d7c8 100644
--- a/AnkiDroid/src/main/res/xml/preferences_fonts.xml
+++ b/AnkiDroid/src/main/res/xml/preferences_fonts.xml
@@ -30,14 +30,14 @@
             android:defaultValue=""
             android:key="defaultFont"
             android:shouldDisableView="true"
-            android:summary="@string/default_font_summ"
+            android:summary="@string/preference_summary_literal"
             android:title="@string/default_font" />
         <ListPreference
             android:defaultValue="0"
             android:key="overrideFontBehavior"
             android:entries="@array/override_font_labels"
             android:entryValues="@array/override_font_values"
-            android:summary="@string/override_font_summ"
+            android:summary="@string/preference_summary_literal"
             android:title="@string/override_font" />
         <ListPreference
             android:defaultValue=""
@@ -48,7 +48,7 @@
             android:defaultValue="100"
             android:key="relativeCardBrowserFontSize"
             android:max="200"
-            android:summary="@string/card_browser_font_size_summ"
+            android:summary="@string/preference_summary_percentage"
             android:text=" %"
             android:title="@string/card_browser_font_size"
             app:interval="10"
diff --git a/AnkiDroid/src/main/res/xml/preferences_general.xml b/AnkiDroid/src/main/res/xml/preferences_general.xml
index 4561803ff8..c684fc106f 100644
--- a/AnkiDroid/src/main/res/xml/preferences_general.xml
+++ b/AnkiDroid/src/main/res/xml/preferences_general.xml
@@ -28,7 +28,7 @@
     <EditTextPreference
         android:defaultValue="/sdcard/AnkiDroid"
         android:key="deckPath"
-        android:summary="@string/col_path_summ"
+        android:summary="@string/preference_summary_literal"
         android:title="@string/col_path" />
     <Preference
         android:dialogTitle="@string/sync_account"
@@ -54,7 +54,7 @@
     <ListPreference
         android:defaultValue=""
         android:key="language"
-        android:summary="@string/language_summ"
+        android:summary="@string/preference_summary_literal"
         android:title="@string/language" />
     <ListPreference
         android:defaultValue="2"
diff --git a/AnkiDroid/src/main/res/xml/preferences_gestures.xml b/AnkiDroid/src/main/res/xml/preferences_gestures.xml
index d6d6e30ca1..2e318abf1b 100644
--- a/AnkiDroid/src/main/res/xml/preferences_gestures.xml
+++ b/AnkiDroid/src/main/res/xml/preferences_gestures.xml
@@ -34,10 +34,10 @@
     <com.ichi2.ui.SeekBarPreference
         android:defaultValue="100"
         android:dependency="gestures"
-        android:dialogMessage="@string/swipe_sensitivity_summ"
+        android:dialogMessage="@string/preference_summary_literal"
         android:key="swipeSensitivity"
         android:max="180"
-        android:summary="@string/swipe_sensitivity_summ"
+        android:summary="@string/preference_summary_literal"
         android:text=""
         android:title="@string/swipe_sensitivity"
         app:interval="1"
diff --git a/AnkiDroid/src/main/res/xml/preferences_reviewing.xml b/AnkiDroid/src/main/res/xml/preferences_reviewing.xml
index e909499a1b..99a12a3641 100644
--- a/AnkiDroid/src/main/res/xml/preferences_reviewing.xml
+++ b/AnkiDroid/src/main/res/xml/preferences_reviewing.xml
@@ -82,7 +82,7 @@
             android:defaultValue="100"
             android:key="cardZoom"
             android:max="150"
-            android:summary="@string/card_zoom_summ"
+            android:summary="@string/preference_summary_percentage"
             android:text=" %"
             android:title="@string/card_zoom"
             app:interval="10"
@@ -91,7 +91,7 @@
             android:defaultValue="100"
             android:key="imageZoom"
             android:max="300"
-            android:summary="@string/image_zoom_summ"
+            android:summary="@string/preference_summary_percentage"
             android:text=" %"
             android:title="@string/image_zoom"
             app:interval="10"
@@ -100,7 +100,7 @@
             android:defaultValue="100"
             android:key="answerButtonSize"
             android:max="170"
-            android:summary="@string/button_size_summ"
+            android:summary="@string/preference_summary_percentage"
             android:text=" %"
             android:title="@string/button_size"
             app:interval="10"
@@ -115,7 +115,7 @@
             android:defaultValue="6"
             android:key="whiteBoardStrokeWidth"
             android:max="30"
-            android:summary="@string/whiteboard_stroke_width_summ"
+            android:summary="@string/preference_summary_literal"
             android:text=""
             android:title="@string/whiteboard_stroke_width" />
         <CheckBoxPreference