Systematic first-principles analysis of the energy level schemes and ground state absorption spectra of trivalent chromium in ZnAl<Subscript>2</Subscript>S<Subscript>4</Subscript> and ZnGa<Subscript>2</Subscript>O<Subscript>4</Subscript> crystals has been performed in the present paper. The recently developed first-principles approach to the analysis of the absorption spectra of...</subscript></subscript></subscript></subscript>