Illustration of the distortion of the probability distribution of time delays with and without the microlensing effect. Panel a: geometrical time lag of the disk, which is simply , when the disk is seen face-on; panel b: luminosity profile G_λ with R_λ = 0.277 light-day; and panel c: zoom-in of 5⟨R_Ein⟩ magnification pattern using ⟨M_⋆⟩ = 0.3 M_⊙, r = 100. Panels d and e: time lag weighted by G_λ and G_λ ⋅ μ, respectively. Panel f: compares the net effect of microlensing on the time delay distribution we would obtain without microlensing. The white circle in each color map is labeled with the effective radius 5.04(1 + z_S)R_λ = 2.315 light-day. (a) δt [day]. (b) log G_λ. (c) log μ. (d) log(δt ⋅ G_λ). (e) log(δt ⋅ G_λ ⋅ μ). (f) Probability of delay.