X-ray maps of three clusters, which are representative of the first three classes described in Sect. 3.1: Very Regular (left panel), Regular (central panel), and Intermediate/Irregular (right panel). The three objects have a similar mass, M₅₀₀ ≈ 1 × 10¹⁵ M_⊙, corresponding to R₅₀₀ of about 1.5 Mpc (shown as a white circle in the images). The black lines are the log-spaced iso-flux contours smoothed over 4 pixels.