id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20086	Indication of choosen preference category vanishes [patch]	skyper	simon04	"==== What steps will reproduce the problem?
1. Open preferences
1. Watch the blue background of the category on the left side
1. enable/disable expert mode or click on a box on the right side 

==== What is the expected result?
The blue background on the left stays

==== What happens instead?
The background vanishes

==== Please provide any additional information below. Attach a screenshot if possible.
I've tested with Metal and there the background stays, so I expect this to be a problem with the theme.

{{{
Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-11-14 16:31:36 +0100 (Sat, 14 Nov 2020)
Revision:17310
Build-Date:2020-11-15 02:30:52
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (17310 en) Linux Debian GNU/Linux 10 (buster)
Java version: 11.0.9+11-post-Debian-1deb10u1, Debian, OpenJDK 64-Bit Server VM
Look and Feel: com.formdev.flatlaf.FlatDarculaLaf

Plugins:
+ flatlaf (35589)
}}}"	enhancement	closed	normal		Plugin flatlaf		fixed	template_report preferences highlight	DevCharly