Structure should be it, or that's what my teacher called it.
Answer:
<em>Well, The shift from craft production in small shops and mills to large‐scale industrial production in factories</em>
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<em>was a major factor setting the context of poverty and vulnerability at the start of the 20th century. </em>
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<em>Industrialization progressed rapidly in the United States in the decades after the Civil War. During the</em>
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<em>period running from the 1870s to 1900 that Mark Twain and Charles Dudley Warner christened the</em>
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<em>Gilded Age, progress in science began to interact with technological development, accelerating the pace</em>
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<em>of industrialization still further and making great fortunes for the founders and leaders of large industrial. Hope That Helps!</em>
<em>From Itsbrazts.</em>
Violet is in design since in design, most designers use the use of using their own drawing design or perspective. With the use of computer- aided technology it makes it useful for designing for animation or the use of different shapes and sizes.
Hope that answers your question!
Foreshortening, it was used to give the illusion of depth.