diff --git a/tegu/overlay/frameworks/base/core/res/res/values/config.xml b/tegu/overlay/frameworks/base/core/res/res/values/config.xml
index de62715..93f7456 100644
--- a/tegu/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/tegu/overlay/frameworks/base/core/res/res/values/config.xml
@@ -32,6 +32,15 @@
     <!-- Minimum screen brightness allowed by the power manager. -->
     <integer name="config_screenBrightnessDim">6</integer>
 
+    <!-- Default strength, in percentage, of bright color reduction when activated. -->
+    <integer name="config_reduceBrightColorsStrengthDefault">35</integer>
+
+    <!-- Minimum strength, in percentage, supported by bright color reduction. -->
+    <integer name="config_reduceBrightColorsStrengthMin">25</integer>
+
+    <!-- Maximum strength, in percentage, supported by bright color reduction. -->
+    <integer name="config_reduceBrightColorsStrengthMax">50</integer>
+
     <!-- Minimum screen brightness setting allowed by power manager.
          The user is forbidden from setting the brightness below this level.  -->
     <item name="config_screenBrightnessSettingMinimumFloat" format="float" type="dimen">0.0</item>