I am facing the same problem and don't think it is possible in 7.4. In 8.3 there should be an option for selecting the first value, so depending on sorting it would be possible to get what we want...:) //Fredrik ... View more

Thank you for the suggestion. That does fix the issue with the colors changing when drilling down with filters, but it creates another issue of the percentage values are no longer displaying when you hover over a box in the treemap because that measure was removed from the color option.  ... View more