Freebbble!

How often do you find Netbeans theme on Dribbble? Once. Just this once.

Atom-like theme for Netbeans is a free Various design resource made by Dribbble user Cam Runcie. As far as I can tell, its license is Personal Use Only.

Helpful hint: Dribbble users are nice. If the license is unknown, it is usually because they forgot to mention it explicitly; not because they were being stingy. Ask nicely and they will probably allow you to use it.