A library of JavaScript code that is used in PhET simulations that depict atoms, subatomic particles, and atomic structure. This was originally created to contain the code that is shared between the "Build an Atom" and "Isotopes and Atomic Mass" simulations, thought it may be applied to additional simulations in the future.
Change looks good, and I tested it in Build an Atom by adding and removing particles and testing the max size. All looking good. Thanks @samreid, closing.
Discovered in https://github.com/phetsims/scenery-phet/issues/262
and fixed in https://github.com/phetsims/shred/commit/b94833de64085dd63d99e5f8940971389e8e1369
@jbphet or @aadish can you please review?