The area of content is darker than the title in the printed page

Testsuite name: FX SceneGraphTests manual
Test name(s): test/manual/printing/TitledPane.java
Product(s) tested: JDK8u72b07 (64bit)
OS/architecture: mac10.10 x64
Reproducible: Always
Reproducible on machine: Evergreen-machine, stt-mac-15.ru.oracle.com
Is it a Regression: No, looks like something changed inside macos.
Is it a platform specific issue: No. Color problem is reproducible on other platforms with both virtual and hardware printers.

Steps to reproduce: Run attached sample. It will print content of the scene using default printer.
Expected result: TextArea has white background.
Actual result: TextArea has grey background as the main scene
Reproducible with other controls too.
 
The actual result:
The area of title is darker than the content in the application,but
in the printed page the area of content is darker than the title,please refer to the Title-App.png and TitledPane_printed.png