MuSCAT3 and MuSCAT2 photometry of seven K2-22b transits (UT dates at right) binned to 10-min intervals for visualisation (black points), along with the median of the posterior model fits (black line) and 16th and 84th percentiles (blue shading). The posteriors of the reference band transit depth k₀ = R_p/R_* and Ångström coefficient α estimates are reported in the rightmost panels.