Настройка всех Java-приложений на использование шрифтов и тем GTK+
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Это исправление заставляет ваши Java-приложения использовать тему GTK+ (цвета и т.п.) и выбранные настройки шрифтов. Вот как это выглядит:
Set the variable _JAVA_OPTIONS by running this command in a terminal:
export _JAVA_OPTIONS="-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel -Dswing.crossplatformlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel ${_JAVA_OPTIONS}"
First test to see if the outcome is what you expect by running your Java app from the same terminal window.
If the result looks good to you, let us make the changes permanent:
Append the above definition of the _JAVA_OPTIONS variable to ~/.profile (for your user only) or /etc/profile.d/90-java_ops.sh (system-wide). In both cases, if the file does not exist, create it.