Colour-magnitude diagram for the sample galaxies in the different large-scale environments. The plots show the normalised density of galaxies. The colourbar provides a normalised scale for these density values across the sub-plots. A distinction between LT-SFH and ST-SFH galaxies has been made, with the coloured density maps representing the distributions for LT-SFH systems and the solid contours the density maps for ST-SFH galaxies. Left panel shows voids, central panel shows filaments, and right panel shows cluster galaxies.