Histogram of the number of clumps in galaxies in the V-,R-, and I-bands grouped by their parent disc colour. Each coloured bar in the plots corresponds to a specific disc colour, and the bars for different disc colours are stacked on top of each other. Galaxies are classified as ‘Red’ if they are redder, ‘Normal’ if they are comparable, and ‘Blue’ if they are bluer than the field members.