>>718761621
I know for the Investigations remaster, the graphics are just the original illustrations before they were downscaled to fit the DS's resolution. The exact graphics that are in the remaster are in the artbook from a decade ago. I was always under the impression that the original trilogy remaster was the same. It definitely is for the CGs and backgrounds, but I'm not sure about the character sprites. I know for sure that the GBA/DS graphics are not pure pixel art. You can tell by looking at how lines are anti-aliased. They definitely used some sort of illustrations as a base.