Color–color diagrams of J0855–0714 (red dot) including the synthetic indices (open circles) computed from the Morley et al. (2014) theoretical spectra. The high-gravity colors (log g = 5.0 cm s^-2) are joined by a solid line, and the dashed line stands for the low gravity indices (log g = 4.0 cm s^-2). All synthetic colors are labeled with their corresponding T_eff (K). (CH₄ stands for the CH₄-off filter.)