RGB colors of F (top), Q (middle), and P (bottom) of the cloudy model planet as functions of phase angle α and thelongitude in the middle of the longitude range that is visible to the observer (0° longitude corresponds with the Greenwich meridian). These color plots were constructed from the F, Q, and P phase curves at 443, 550 and 670 nm as presented in Fig. 4. The horizontal black lines indicate the respective longitudes on the geographical map on the right.