Which famous dictionary brand's logo was specifically designed with a phonological feature that reflects its linguistic heritage?

Brand identity in the linguistics world extends far beyond just words! Companies invest extensively in the phonological and semantic aspects of their logos and brand names. This trivia tests your knowledge of how linguistics principles have shaped some of the world's most recognizable brands, exploring the deliberate language science behind their design and global appeal.

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Oxford Dictionary (featuring a deliberate visual representation of the Great Vowel Shift)
Merriam-Webster (incorporating the IPA symbol for schwa [ə] in its design elements)
Collins Dictionary (using phonemic color-coding in its typographic design)
Cambridge Dictionary (with letterforms that visually represent stress patterns in English pronunciation)