Periodograms produced for the light curves shown in Figure 7. X-axes are logarithmically spaced periods and y-axes are periodogram powers. The periodogram for the pixel hosting Gaia DR3 5340164256296564736 is highlighted with a red frame. The impact of this bright Cepheid on measurements from neighboring pixels is very evident, with its 2.1 days signal being the strongest signal measured in periodograms corresponding to pixels as far removed as ﹩\approx 1^{\prime} ﹩.