For the graphical representation of position and density of sequence features we use heatmaps. They graphically represent density of te repective feature by colors.
Here, the color-coded features (repeats, genes) are shown for Arabidopsis thaliana chromosomes. Blue represents lowest (0%), green medium (50%) and red highest (100%) density of the respective feature. Relative density has been determined within a sliding window of 0.5 MB size and in steps of 0.1 MB.