How do you look on NetBeans 6.5? I mean by passing the netbeans script flags (on Ubuntu) or by changing the netbeans script or by some kind of setting.
In the netbeans.conf file, add "--laf" to your netbeans_default_options value.
netbeans_default_options
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Note: Netbeans Substance is no longer in development as of August 25, 2008.