diff --git a/raven/overlay/frameworks/base/core/res/res/values/config.xml b/raven/overlay/frameworks/base/core/res/res/values/config.xml
index 3ae5cb0..11950a9 100644
--- a/raven/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/raven/overlay/frameworks/base/core/res/res/values/config.xml
@@ -87,6 +87,18 @@
     <!-- The default peak refresh rate. -->
     <integer name="config_defaultPeakRefreshRate">120</integer>
 
+    <!-- Not allow to switch to higher refresh rate when display brightness setting is
+         equal or less than this value -->
+    <integer-array name="config_brightnessThresholdsOfPeakRefreshRate">
+        <item>2</item> <!-- 15% UI brightness -->
+    </integer-array>
+    <integer-array name="config_ambientThresholdsOfPeakRefreshRate">
+        <item>5</item>
+    </integer-array>
+
+    <!-- default refresh rate in the zone defined by birghtness and ambient thresholds -->
+    <integer name="config_defaultRefreshRateInZone">120</integer>
+
     <!-- Array of light sensor LUX values to define our levels for auto backlight brightness support.
       The N entries of this array define N  1 zones as follows:
          Zone 0:        0 <= LUX < array[0]