As someone with Achromatopsia, I loved the concept, though I thought the depiction of Achromatopsia was a bit weak. Achromatopsia includes more than just colorblindness, it causes reduced visual activity, photophobia, and nystagmus. Would have been cool if you incorporated those too.
Also wild to me that we both released a game about Achromatopsia within a week of each other and both included a "Hang in there" cat poster in our games lmao.