There is a 'Series for Color' option available for Lat/long map cards, but setting the Symbol Color only allows the specification of one colour, not one colour per series value.
I would like to be able to control the colour of each series value in order to maintain visual alignment with the colours used on other cards - i.e. in a field containing values of 'new' and 'existing', I want all 'new' items to appear in one colour in my dashboard and all 'existing' items to appear in another colour. Currently I can only control the colour of the first series value, with a default colour assigned to the second.