SplitPaneDivider.draggingColor UIProperty was not honoured in Nimbus L&F. Added support for setting SplitPane dragging color for Nimbus L&F by drawing a fillRect of the set color as done in BasicLookAndFeel. The fix relies on `continuousLayout` property being false by default which is enabled for Nimbus, which is set to default false now, same as in other L&F. I think it was set true just to have documented default value in JDK-6937415
All jtreg swing tests are ok along with SwingSet2 JSplitPane demo in Nimbus L&F. ------------- Commit messages: - 7175397: The divider color is not changed to green when dragging for Nimbus LaF. Changes: https://git.openjdk.org/jdk/pull/9937/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9937&range=00 Issue: https://bugs.openjdk.org/browse/JDK-7175397 Stats: 26 lines in 2 files changed: 25 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/9937.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9937/head:pull/9937 PR: https://git.openjdk.org/jdk/pull/9937
