Three-way connections between colour, activity, and rotation, but with more nuanced separations than traditional. Panel (a) shows the X-ray colour-activity diagram with stars colour-coded by rotational properties (top left; also see key). As in Fig. 8, members with identified flares in their light curves are marked with x-shaped symbols, and members with two potential optical counterparts with pluses. Panel b: colour-period diagram in which the different rotators are defined (bottom left). The lines in the CPD are lines of constant normalised Rossby number, and are located at Ro/Ro_⊙ = 0.03 and 0.1, indicating respectively the transition from saturated to desaturated stars, and then to unsaturated stars. A pile-up of rotation periods for early Mdwarfs just below the line can be seen. The dash-dotted line at longer rotation periods indicates the limit to the unsaturated stars. The two dotted lines show the lines of equal Rossby number at the same Ro/Ro_⊙ positions but using τ_c from Cranmer & Saar (2011). Panel c: rotation-activity diagram for cluster members with their rotation periods available (top right). The two vertical lines again correspond to the lines in the CPD, at Ro/Ro_⊙ = 0.03 and 0.1.