In "Midnight Blue," there's a recurring synth phrase something like:
Almost in between the two sections of this phrase, there's a vocoder part singing, "Midnight blue." It's conspicuously absent, however, during the synth phrase beginning at ~2:02. This is right after the verse with the line "I count the words that I am never gonna say," so I think the vocoder is intentionally left out there in order to reflect that specific line.
I also noticed that the three syllables of "ev'rything" in the line "Ev'rything's midnight blue" are sung to different pitches (F D Bb), giving a sense of breadth.