The thymic or high heart chakra is pink. I've read in some resources that pink is the color of unconditional love. And in addition to the 7 major chakras, there are interdimensional chakras too that are above us physically but can be brought down to us with intent. Before the forum crash, I posted a chart that listed these chakras (8 and above) with their function and color. I found another link that lists color. As for the purple and gold with ruby flecks for the solar plexus, I can only surmise that in someone who has sufficiently raised their vibration and has the chakras 8 and above active and open if they were to overlay or even drop between the major 7, it could change the appearance of the major chakras.