Found the 12" HTT at my local TRU today, had 5 of them, all with the bluish/grey highlights. I have to say, honestly, at least looking at the ones in my store, the highlights are so faint, I don't think you're missing out too much if yours doesn't have them, I had to make an effort to notice it. Thankfully I found a good one out of them, one had a yellow dot on his cheek from the eye paint, others barely had any white on the teeth.
Overall, the figure is incredible, feels way more solid and sturdy than my '94 SHMA, the tail articulation works great where it's jointed, everything feels solid, nothing feels fragile, the detail came out much sharper and crisper than photos have suggested, just a great little figure and with the current 25% off sale, a real bargain too.