Top row: averaged photometric variability ⟨ΔA(t)/A̅⟩ as a function of phase for stars with different rotation periods (left panel) and effective surface temperatures, T_eff (right panel). Bottom row: same as the top row, but for . The stars are binned by period and effective temperature, with bin widths of approximately four days and ∼400 K respectively. For clarity we also show ⟨ΔA(t)/A̅⟩ = 0 and and the half-way point ϕ = 0.5 of the activity cycle in gray.