diff --git a/overlay/FrameworksResTarget/res/values/config.xml b/overlay/FrameworksResTarget/res/values/config.xml
index f1c515c..c39afe2 100644
--- a/overlay/FrameworksResTarget/res/values/config.xml
+++ b/overlay/FrameworksResTarget/res/values/config.xml
@@ -49,4 +49,20 @@
         <item>/vendor/lib64/egl/libGLESv2_adreno.so</item>
     </string-array>
 
+    <!-- Low zone brightness thresholds in the range [0, 255] -->
+    <integer-array name="config_brightnessThresholdsOfPeakRefreshRate" translatable="false">
+        <item>3</item>
+        <item>4</item>
+    </integer-array>
+
+    <!-- Low zone lux thresholds -->
+    <integer-array name="config_ambientThresholdsOfPeakRefreshRate" translatable="false">
+        <item>-1</item>
+        <item>5</item>
+    </integer-array>
+
+    <!-- Default refresh rate in the zone defined by brightness and ambient thresholds.
+         If non-positive, then the refresh rate is unchanged even if thresholds are configured. -->
+    <integer name="config_defaultRefreshRateInZone">120</integer>
+
 </resources>