How to customize assigned colors with dynamic labels from a pie chart?

I don't have any problems to show the pie chart with assigned colors with the fixed labels by just adding the following line to the Simple XML:{"P1":0xFFC000,"P2":0x000000,"P3":0x92D050,"P4":0x7030A0,"P5":0xFF0000} However, labels are changed by concatenated with count and percentage, for instance, "P1" is now changed to "P1 (count:12, perc: 24%)". I tried using wildcard such as:{"P1*":0xFFC000,"P2*":0x000000,"P3*":0x92D050,"P4*":0x7030A0,"P5*":0xFF0000} but it doesn't work. Does anyone have any clues? Thanks