Please review a trivial test only fix. This is a manual test and create an instruction panel containing JTextArea. The JTextArea background color is hardcoded as white color, which is causing issues on dark mode in Ubuntu 20.04 and Ubuntu 20.10 as the text color is also white. The fix is to remove the hardcoded white color as the JTextArea background color should be set by L&F and should not be hardcoded in test.
------------- Commit messages: - Add bugID - 8260291: The case instruction is not visible in dark mode Changes: https://git.openjdk.java.net/jdk/pull/2564/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2564&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8260291 Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/2564.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2564/head:pull/2564 PR: https://git.openjdk.java.net/jdk/pull/2564
