wow.. amazing challenge.. really enjoyed this one !

Great kata! I had a lot of fun solving it.

'alr approved some time ago'

this is better than mapping in my opinion. I tried to this but i did the easy solution of mapping.

One of the very fun kata that I've worked with so far! Thanks @lambda4fun

Only uses Integer and Boolean.

So it was my intention NOT to use any non-integer calls ;)

It's been a pleasure, thanks!!!

Ah you're zipping in the multiplier. I'm diggin it.

Oops. Typo. Fixed. Thanks! :]

Language tags in Markdown code blocks are case-sensitive, it should be haskell.

PRESET_COLORS is a predefined map as the instructions say, it's not a part of JS core, it's a const/var defined for this kata.

Not a kata issue, it's a problem with your code, use Question next time. Have you seen the error code you got in the sample tests?

parsed['g'] = (alpha[c.upper()]*16)
...
parsed['g'] += alpha[c]

There is your problem.

Although you can easily index an array with -1, 0, 1 too...