Query regarding colons in Adventuron

So this may sound like a silly question (and it kinda is), but… What’s up with the strange syntactic choice to prefix all statements with a colon sign? I know quite a bit about programming, but I’ve never seen that exact syntax used anywhere. Is this a stylistic choice, or is it drawn from another language?


Is that not just the way it should be? As a long time Adventuron user, I’d assumed it was something written into the laws of the universe.

Only the Adventuron deity (= @adventuron) will know!