Hi Saskya! Our curry sauce is a particular regional type of Japanese curry from Kanazawa, Japan, Northwest of Tokyo. It's always a darker color, served on a metal plate, with shredded cabbage on the side-- unlike more "traditional" Japanese curries. The reason for the color is 1. It's marinated for 55 hours, which darkens it, and 2. It uses pork which lends it a darker color as well.
Its heavily americanized for a much more US centric palette so it can be marketed to a broader target audience. The color is more mentally acceptable for people who are used to red wine sauces with their beef or pork.
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