The noodles are often dyed to avoid confusing the pasta with appendages -- otherwise, tentacles can accidentally end up as part of somesquid's squighetti meal, or a real squidiot might even take a bite out of itself.
Oh, I didn't take any offense. I genuinely appreciated the correction (and such a gracious correction, too).
This is akin to being recently admonished on the correct pronunciation of altimeter, which is evidently not spoken as "all-tee-mee-ter." After being righted I feel all the better, partially because I've gained an unwittingly self-made neologism that can be used to annoy pedants.
But I wouldn't dare annoy anyone here, so thanks again. :]