[AlotOfReading]

I haven't used sim daltonism, but most of these simulators assume your opsins are fully non-functional. You usually have multiple copies of the relevant genes and most of them need to be non-functional for complete colorblindness. Most people are only partially colorblind as a result, from what I understand.

Additionally, mutations can shift your spectral sensitivity curves away from "human normal", which further affects color perception.