Top: absolute (left panel, normalised to unity at the maximum value of the full baryon sample, left panel in Fig. 3) and relative distributions (right panel) of the baryon gas mass distribution as a function of mass-weighted temperature in filaments with low (orange dashed line), medium (blue dotted line), and high (green dash-dotted line) luminosity overdensity. For comparison, mass within all Bisous filaments is shown with a black line. Bottom: same as top panel, but for the gas mass distribution as a function of gas density contrast. Gas within R₂₀₀ has been excluded in all panels.