Comparison between the locations (black line) and the underlying chemical properties of the gas (coloured contours) ofPlanets A, B, and C. We note that we only show the C/O up to the point where gas accretion is shut off in our formation model since the disk no longer impacts the atmosphere once accretion is stopped. The contours are the same as in Fig. 2. We note the change in the time axis in the third panel.