MmD performed on images A and D of H1413+117 in 2011, using M = 0.4 (Sect. 3.3). The dashed blue line is the flux of image A. The thick black line is the fraction of the flux F_M unaffected by microlensing for μ = 2.0. The red line is the corresponding microlensed fraction of the flux F_Mμ (shifted up to ease legibility), the dotted horizontal line is the line corresponding to F_Mμ = 0. The gray lines show the decomposition for two other values of μ (see Sect. 3.2). The three shaded areas correspond to the three regions A1 − A3 as discussed in the text.