Open source laf[look n feel] for java swing application

Which are Open source lafs[look n fee开发者_运维百科l] for java swing application?

Substance LAF from Kirill Grouchnikov is the best I know.

Here is a great answer on another question: Java Look & Feel

Edit:
Don't forget the system look and feel:

try
{
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {}

Don't forget

Seaglass : a LAF inspired by the OSX theme and, well, you knew it, seaglass (beautiful!)

Nimbus : The standard Java L&F for Java 6