Update the text color of summary in Preference

Bug: 341688200
Test: visual
Change-Id: I2df91f00afe4606de847facb446cbd01f083e7b7

packages/SettingsLib/SettingsTheme/res/values-v35/themes.xml

@@ -20,7 +20,7 @@
         <item name="android:colorAccent">@color/settingslib_materialColorPrimary</item>
         <item name="android:colorBackground">@color/settingslib_materialColorSurfaceContainer</item>
         <item name="android:textColorPrimary">@color/settingslib_materialColorOnSurface</item>
-        <item name="android:textColorSecondary">@color/settingslib_materialColorOnSurfaceVariant</item>
+        <item name="android:textColorSecondary">@color/settingslib_text_color_secondary</item>
         <item name="android:textColorTertiary">@color/settingslib_materialColorOutline</item>
     </style>