OmniGears: add generic color picker preference

Also fixes existing color pickers rotation handling

Change-Id: I7f3280517aeed9bc70edfbcd69a08e567a6a7366
diff --git a/res/values/custom_strings.xml b/res/values/custom_strings.xml
index 37a79f2..dabc9d1 100644
--- a/res/values/custom_strings.xml
+++ b/res/values/custom_strings.xml
@@ -549,4 +549,5 @@
     <string name="calendar_shortcut_title">Date</string>
     <string name="default_shortcut">Default</string>
 
+    <string name="color_picker_dialog_title">Color</string>
 </resources>