Cumulative flare-frequency diagram for three different phases of the Kepler light curve of KIC 2852961. Blue dots correspond to the FFD for the first period of the Kepler data until BJD = 700 (+2454833), when the rotational modulation shows large amplitudes. The FFD plotted in magenta represents the small amplitude period between BJD = 700 and 1300, while the third FFD in black corresponds to the third part of the light curve after BJD = 1300, when the amplitude increased again. See the text for an explanation.