diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 417b210..323c3dc 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -492,4 +492,46 @@
          For example, a device with Home, Back and Menu keys would set this
          config to 7. -->
     <integer name="config_deviceHardwareKeys">64</integer>
+
+    <!-- Array of hysteresis constraint values for brightening, represented as tenths of a
+         percent. The length of this array is assumed to be one greater than
+         config_dynamicHysteresisLuxLevels. The brightening threshold is calculated as
+         lux * (1.0f + CONSTRAINT_VALUE). When the current lux is higher than this threshold,
+         the screen brightness is recalculated. See the config_dynamicHysteresisLuxLevels
+         description for how the constraint value is chosen. -->
+    <integer-array name="config_dynamicHysteresisBrightLevels">
+        <item>800</item>
+        <item>3000</item>
+        <item>2000</item>
+        <item>500</item>
+    </integer-array>
+
+    <!-- Array of hysteresis constraint values for darkening, represented as tenths of a
+         percent. The length of this array is assumed to be one greater than
+         config_dynamicHysteresisLuxLevels. The darkening threshold is calculated as
+         lux * (1.0f - CONSTRAINT_VALUE). When the current lux is lower than this threshold,
+         the screen brightness is recalculated. See the config_dynamicHysteresisLuxLevels
+         description for how the constraint value is chosen. -->
+    <integer-array name="config_dynamicHysteresisDarkLevels">
+        <item>950</item>
+        <item>950</item>
+        <item>800</item>
+        <item>800</item>
+    </integer-array>
+
+    <!-- Array of ambient lux threshold values. This is used for determining hysteresis constraint
+         values by calculating the index to use for lookup and then setting the constraint value
+         to the corresponding value of the array. The new brightening hysteresis constraint value
+         is the n-th element of config_dynamicHysteresisBrightLevels, and the new darkening
+         hysteresis constraint value is the n-th element of config_dynamicHysteresisDarkLevels.
+         The (zero-based) index is calculated as follows: (MAX is the largest index of the array)
+         condition                      calculated index
+         value < lux[0]                 0
+         lux[n] <= value < lux[n+1]     n+1
+         lux[MAX] <= value              MAX+1 -->
+    <integer-array name="config_dynamicHysteresisLuxLevels">
+        <item>30</item>
+        <item>300</item>
+        <item>5000</item>
+    </integer-array>
 </resources>