am i just imagining things, or are there six new HA base skin colors – red, yellow, green, teal, blue, and purple? i know we've had the pastel colors, the greys, and black and white forever, but those last six… were they always there and i just never noticed? or are they actually new?

They've always been there. I know ages ago I played around with the yellow one (and I used the blue one back in April for a cosplay HA)