There is no way that you can tell paint and trim from the VIN.
You of course can tell the year, the sequence number i.e 441 of 448 and confirm the LT-5, but that is it.
There is/was a spreadsheet that listed many of the cars from when members joined either the original ZR-1 Registry or this one. If the information was given, then that is likely how the one poster came up with the paint and trim on that particular car.
Hope that helps!
Marty