Allow the use of assigning custom colours for both Timepage and Actions for different calendars, lists, etc., instead of being limited to the mostly hideous two color palettes for tasks, calendars, events, etc. Allow the use of a color wheel, color picker, etc. so that the platforms and UI are more customisable. The inability to have a color palette that is both contrasting enough for my neurodivergent brain to be able to easily differentiate between the tasks and also aesthetically cohesive so that it's not super jarring to look at is really one of the downsides of these apps.