Set all Java apps to use GTK+ font & theme settings

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Introduction

This fix makes your Java apps use your GTK+ theme (colours & such) & your chosen font settings. Here is how it looks like:

  • Before the fix
  • After the fix


How do you do it?

First try if the outcome is what you expect:

1) Set the variable _JAVA_OPTIONS accordingly:

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}"

2) Run your Java app from the same terminal window.

If the result looks good to you, let us make the changes permanent:

1) 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.

2) Restart the system

3) Start your Java app to check the result.

4) If, for some reason, the entry in ~/.profile or /etc/profile.d/90-java_ops.sh had no effect, you can put the following line into /etc/environment:

_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}"


Links

The source is this question at askubuntu.com:

How can I get a java apps to use the GTK+ theme? [1]


Support

Following is a link to this page's forum counterpart where you can post any related feedback: [2]