Light curves in the bolometric, G, G_BP, and G_RP bands (shown from top to bottom) for a BL Her model with input parameters, Z = 0.00043, X = 0.75041, M = 0.6 M_⊙, L = 100 L_⊙, and T = 6700 K computed using four sets of convection parameters (sets A, B, C, and D depicted in different colours). Light curves are vertically offset by 0.5 mag successively for visualisation purposes. The light curves in the foreground are computed using MESA r11701 and used in this analysis while the corresponding light curves depicted in the background are computed using the latest version, MESA r23.05.1.