Pore level occupancy distribution of gas filled pores in pressure depletion (A) and gas injection experiments (B). In both cases a preference for intermediate-sized pores is observed in comparison with the pore size distribution (C). In the low rate injection experiment we see over time a growth of the gas bubble size distribution in terms number of pores occupied and the width of the distribution (B). In the pressure depletion experiment we see over time a selective increase of gas bubble occupancy in intermediate-size pores while the occupancy in small pores decreases (A). This is a signature of ripening effects. The fact that the size distribution does not (or only very msarginally) grow into larger pores suggests also the presence of anti-ripening effects [49].