I wouldn’t say “archaic,” even because the pronunciation is more like “colour” (/'kɔlə:/) than “color” (even in US, /'kɔlᵊr/), which should be ended by /ʌr/ or /ʌ:/.
The different is just that: “colour” is the British spelling, “color” is the US spelling. Since HTML and SGML were created in the US, the US spelling is preferred by syntax.
I wouldn’t say “archaic,” even because the pronunciation is more like “colour” (/'kɔlə:/) than “color” (even in US, /'kɔlᵊr/), which should be ended by /ʌr/ or /ʌ:/.
The different is just that: “colour” is the British spelling, “color” is the US spelling. Since HTML and SGML were created in the US, the US spelling is preferred by syntax.
It was just a joke. I was just taking the piss out of our friends across the pond.
Oh, sorry. 😁
I’m autistic, I have a hard time trying to figure out when something is a joke.