Question: What type of design was the designer who, together with Robert Slimbach, designed the Myriad typeface best known for?

full_context: Document 1: Utopia (typeface): Utopia is the name of a transitional serif typeface designed by Robert Slimbach and released by Adobe Systems in 1989.
Document 2: Benton Sans: Benton Sans is a digital typeface family begun by Tobias Frere-Jones in 1995, and expanded by Cyrus Highsmith of Font Bureau. It was a reworked version of Benton Gothic developed for various corporate customers, under Frere-Jones's guidance. In developing the typeface, Frere-Jones studied drawings of Morris Fuller Benton's 1908 typeface News Gothic at the Smithsonian Institution. The typeface began as a proprietary type, initially titled MSL Gothic, for Martha Stewart Living magazine and the website for Martha Stewart Living Omnimedia. As Benton Gothic, there are 7 weights from Thin to Black and only 2 widths.
Document 3: Myriad (typeface): Myriad is a humanist sans-serif typeface designed by Robert Slimbach and Carol Twombly for Adobe Systems. Myriad was intended as a neutral, general-purpose typeface that could fulfil a range of uses and have a form easily expandable by computer-aided design to a large range of weights and widths.
Document 4: Warnock (typeface): Warnock is an old style typeface commissioned by Chris Warnock in honor of his father, John Warnock, in 1997. It was designed by Robert Slimbach and first published in 2000 as Warnock Pro.
Document 5: Matthew Butterick: Matthew Butterick is an American typographer, lawyer, writer, and computer programmer. He received the 2012 Golden Pen Award from the Legal Writing Institute for his book "Typography for Lawyers", which started as a website in 2008 based on his experience as a practicing attorney. He has worked for The Font Bureau and founded his own website design company, Atomic Vision (purchased by Red Hat in 1999). Expanding "Typography for Lawyers", Butterick published "Practical Typography" as a "web-based book" in July 2013.
Document 6: Myriad Pictures: Based in Santa Monica, California, Myriad Pictures is a leading independent entertainment company specializing in production, financing and worldwide distribution of feature films and television programming. President and CEO Kirk D’Amico opened the company in 1999 and has built a diverse library of art house and mainstream programming. Mr. D’Amico was named one of the Top 50 independent producers in the annual list published by The Hollywood Reporter, and is a member of the Board of Directors of IFTA.
Document 7: Minion (typeface): Minion is a serif typeface designed by Robert Slimbach in 1990 for Adobe Systems and inspired by late Renaissance-era type. The name comes from the traditional naming system for type sizes, in which minion is between nonpareil and brevier, with the type body 7pt in height. As the name suggests, it is particularly intended as a font for body text in a classical style, neutral and practical while also slightly condensed to save space. Slimbach described the design as having "a simplified structure and moderate proportions."
Document 8: Typographic approximation: For a printed medium (such as paper), a typographic approximation is a replacement (approximation) of some element of the writing system (usually, a glyph) with some else glyph(s), such as a nearly homographic character, digraph or character string. An approximation is different from a typographical error in that an approximation tries to preserve visual appearance of a glyph. There are approximation for non-printed visual presentation such as displays. The concept of approximation also applies to the World Wide Web and other forms of textual information available via digital media, though usually at the level of characters, not glyphs.
Document 9: Small caps: In typography, small capitals (usually abbreviated small caps) are lowercase characters typeset with glyphs that resemble uppercase letters ("capitals") but reduced in height and weight, close to the surrounding lowercase ("small") letters or text figures. Note that this is technically not a case-transformation, but a substitution of glyphs, although the effect is often simulated by case-transformation and scaling. Small caps are used in running text as a form of emphasis that is less dominant than all uppercase text, and as a method of emphasis or distinctiveness for text alongside or instead of italics, or when boldface is inappropriate. For example, the "Text in small caps" appears as Text in small caps in small caps. Small caps can be used to draw attention to the opening phrase or line of a new section of text, or to provide an additional style in a dictionary entry where many parts must be typographically differentiated.
Document 10: Carol Twombly: Carol Twombly (born 1959) is an American designer, best known for her type design. She worked as a type designer at Adobe Systems from 1988 through 1999, during which time she designed, or contributed to the design of, many typefaces, including Trajan, Myriad and Adobe Caslon.
Document 11: Robert Slimbach: Robert Joseph Slimbach is Principal Type Designer at Adobe Systems, where he has worked since 1987. He has won many awards for his digital typeface designs, including the rarely awarded Prix Charles Peignot from the Association Typographique Internationale, the SoTA Typography Award, and repeated TDC awards from the Type Directors Club. His typefaces are among the most commonly used in books.
Document 12: Arno (typeface): Arno is a serif type family created by Robert Slimbach at Adobe intended for professional use. The name refers to the river that runs through Florence, a centre of the Italian Renaissance. Arno is an old-style serif font, drawing inspiration from a variety of 15th and 16th century typefaces. Slimbach has described the design as a combination of the period's Aldine and Venetian styles, with italics inspired by the calligraphy and printing of Ludovico degli Arrighi.
Document 13: Adobe Jenson: Adobe Jenson is an old-style serif typeface drawn for Adobe Systems by its chief type designer Robert Slimbach. Its Roman styles are based on a text face cut by Nicolas Jenson in Venice around 1470, and its italics are based on those created by Ludovico Vicentino degli Arrighi fifty years later.
Document 14: Poetica (typeface): Poetica is the name of a calligraphic, ornamental typeface designed by Robert Slimbach for Adobe Systems in 1992. As one of the first of the Adobe Originals family of typefaces, it attained a wide usage in digital typography.
Document 15: Sara Soskolne: Sara Soskolne (born 1970) is a Canadian type designer best known for her work at Hoefler & Frere-Jones (H&FJ) type foundry on typefaces such as Gotham. After ten years working in graphic design in Toronto, Soskolne attended the University of Reading where she received her MA in 2003. She has taught type design at Yale School of Art, the Book Arts Institute at Wells College, and New York’s School of Visual Arts and the Cooper Type Certificate Program. Soskolne has written about the evolution of sans-serif lower case types in the 19th century.
ground_truth: type design