Parameters from the isophotes fit to the surface brightness profiles for both cEs. Left panels: The parameters for FS90 110 are depicted with blue circles and red squares for the B and I filters, respectively. From top to bottom, the panels show the profiles for the colour (B − i)₀, the ellipticity (ϵ), the PA, and the parameter A4 from the harmonic expansion, as a function of r_eq. Right panels: Equivalent profiles for FS90 192.