[Illustration: Thin]
[Illustration: Medium]
[Illustration: Normal]
[Illustration: A]
[Illustration: B]
[Illustration: C]
[Illustration: D]
[Illustration: E]
[Illustration: F]
[Illustration: G]
[Illustration: H]
[Illustration: I]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]
[Illustration: tones]