Exponents of the light curve parameters obtained from the synthetic light curves from left to right: flare amplitude, flare time scale and cross band delay exponent. The top panels (A–C) show the variation in the light curve parameters using a fixed spectral slope of s = 2.5 and the bottom panels (D–F) present the changes in the parameters for a fixed helical magnetic field (b = 1.5). The different values for d are colour-coded and can be found in the plot legend.