//! Unit tests for the `materials` module tree, split by topic: name lookup, the
//! builder-style opt-in constructors, dispersion/Abbe-number regressions, the biaxial
//! indicatrix, the GPU-routing predicate, and the zoned Ametrine.
modametrine;modbiaxial;modbuilt_in_hues;modcolor_change_garnet;modcustom;moddispersion;modgpu;modlookup;