Regression: YES, worked fine in b67, broken in b68
Package: J2SE
Version: java full version "1.6.0-rc-b68"
Locale: de_DE.UTF-8, C

Desctription:
Widgets are rendered in wrong colors or not at all after selecting GTK L&F in SwingSet2 application on Solaris9ur8. See attached screenshot swingset2.png for detailed info.

Bundles tested:
jdk-6-rc-bin-b67-solaris-sparc-12_jan_2006.sh,
jdk-6-rc-bin-b67-solaris-sparcv9-12_jan_2006.sh,
jdk-6-rc-bin-b68-solaris-sparc-19_jan_2006.sh,
jdk-6-rc-bin-b68-solaris-sparcv9-19_jan_2006.sh,
jdk-6-beta2-bin-b79-solaris-sparc-06_apr_2006.sh,
jdk-6-beta2-bin-b79-solaris-sparcv9-06_apr_2006.sh

Platform: SunOS hron 5.9 Generic_118558-11 sun4u sparc SUNW,Sun-Blade-100
bash-2.05$ cat /etc/release
                        Solaris 9 9/05 s9s_u8wos_05 SPARC
           Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 04 August 2005

Reproduce Step(s):
 1, install jdk-6-rc-bin-b68-solaris-sparc-19_jan_2006.sh & jdk-6-rc-bin-b68-solaris-sparcv9-19_jan_2006.sh bundles into ./jdk1.6.0 directory,
 2, run ./jdk1.6.0/bin/java -jar ./jdk1.6.0/demo/jfc/SwingSet2/SwingSet2.jar,
 3, switch the L&F to GTK L&F using main menu,
 4, Check the wrongly rendered widgets.

Reproducible in previous build(s)? If yes, which previous build(s)?
Not reproducible on: b60, b65, b67 (these were tested)
Reproducible on: b68, b69, b70, b71, b74, b79 (these were tested)