Color info bar second from right?

[Ustice]

This is how my terminal prompt currently looks:

I know that I can change the color of the right-most bar (what is displaying my date) with the POWERLINE_RIGHT_A_COLOR_BACK and POWERLINE_RIGHT_A_COLOR_FRONT environment variables, but what about the time and Git info?

I have expected POWERLINE_RIGHT_B_COLOR_BACKand POWERLINE_RIGHT_B_COLOR_FRONTas well as C, but they currently do not. It would be especially nice, since currently B and C are the same color.