[Not planned] Colour Coding Tasks

Hi there, please can I suggest a functionality whereby different type of tasks could be colour coded - this would mean that when looking at the timeline or workload view instead of just seeing a coloured stage ( e.g green = in progress etc) we see clashes of similar tasks for example,  lots of orange means lots of set up tasks going on at the same time indicating a pressure point. This would be helpful! 

Thanks

Stacey