Slight color differences

[Spect3r]

Personally, i normally do not try to get Steelbooks because of small color variations.
I do have one or another, but just because i got them dirt cheap.

In regards to the question, i think
Solution 3: Add “(have regional color variant)” to steelbook name in the original list.

Is the best solution.
But again thats me, and i am not the one compelling the list, so...