The permissions plugin is custom. The development team can most likely do what I suggested for prefix changes, and I don't believe there was a CandyQueen rank on v1.
I would love to see a prefix change but not really any new ranks. For example, if you have CandyPrince then you can change your prefix from CandyPrince to CandyPrincess using /prefix. This would be very handy to have!