With all the conversations about SCA and purple WT 154's I'm posting what I have found so far in the color line-up. Correct me but I think there is a straight blue version in addition to what I have. Also a pink too.

Note: the middle WT is the closest to straight clear I think anyone will find. Just a mere tint of green. Never seen another. Glad I grabbed it almost ten years ago. I keep it in a dark place just in case.