diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 581a849..eff2cf2 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -340,4 +340,21 @@
         <item>haydn</item>
         <item>haydnpro</item>
     </string-array>
+
+    <!-- The display uses different gamma curves for different refresh rates. It's hard for panel
+         vendor to tune the curves to have exact same brightness for different refresh rate. So
+         flicker could be observed at switch time. The issue is worse at the gamma lower end.
+         In addition, human eyes are more sensitive to the flicker at darker environment.
+         To prevent flicker, we only support higher refresh rates if the display brightness is above
+         a threshold. And the darker environment could have higher threshold.
+         For example, no higher refresh rate if
+         display brightness <= disp0 && ambient brightness <= amb0
+         || display brightness <= disp1 && ambient brightness <= amb1
+    -->
+    <integer-array name="config_brightnessThresholdsOfPeakRefreshRate">
+       <item>74</item> <!-- 77% UI brightness -->
+    </integer-array>
+    <integer-array name="config_ambientThresholdsOfPeakRefreshRate">
+       <item>63</item>
+    </integer-array>
 </resources>