Hello mate. Firstly, congrats on the guitar. Secondly, I hope it's not a dud!
For what it's worth, I had 2 white JS
's (an original 1 and a 1000) and can only say that, from my own experience, the colour on the guitars I had was NOT pure white, but a SLIGHT ivory colour (which, in fact, became more ivory as the guitar aged and I gigged with it in pubs etc). The 1000 was bought from new and was 'more White' than the 1, but definitely not what I, personally, would call pure white, but also definitely not what I would call Ivory. I guess 'off-white' is the best way I could describe it! Hard to compare without seeing the pics of your guitar.
As far as the pickup toggle switch, it could be as innocent as the switch having rotated into the wrong direction in its socket. or someone having purposely rotated it as a preference. Try unscrewing the ring around the toggle switch and rotating the switch (its worth unscrewing the electronics cavity cover at the back of the guitar and looking at the switch from underneath while you do this to ensure its not snagging and can indeed be rotated). I really don't know how far the switch will rotate, but I do know it can definitely be rotated to some degree, as I've done it myself in the past.
Not near my guitar right now to see if this would work, but I hope it helps.