Radius ratios in various passbands, including MuSCAT2 and GROND joint measurements (circles), GROND near-infrared observations (squares; Mancini et al. 2019), Calar Alto 1.23 m and Danish 1.54 m (triangles; Mancini et al. 2019), HST/WFC3 observations (no symbol) from Tsiaras et al. (2018), and Spitzer measurements (diamonds). The blue line shows the median retrieved atmospheric model based on all measurements and the light blue band its 1σ uncertainty. The red line and its shaded band show the retrieval without the measurements in the Cousins-I and Bessell-I bands. The small diamonds in cyan and yellow show the binned version of the retrieved model in the passbands with observations. HST/WFC3 measurements were shifted using the best-fit values from the two retrieval runs.