Each word has a 4-bit field correspond to its purpose so you could use some other method than color. https://colorforth.github.io/parsed.html https://colorforth

Each word has a 4-bit field correspond to its purpose so you could use some other method than color. https://colorforth.github.io/parsed.html https://colorforth.github.io/parsed.html I wonder if simply choosing better colors depending on the type of color blindness would be a quick fix, starting with not using red and green.