PORTLAND, Ore.—The Pacific Northwest saw a splash of unexpected color this week. Shen Yun has come to the Keller Auditorium on its annual tour. Shen Yun is a classical Chinese dance and music company that presents 5,000 years of Chinese history before the era of communism. After seeing the March 18 matinee, Mike Smith, an asset management company owner, said he went to China about eight years ago and didn’t see the vibrant colors there that he had seen in Shen Yun. “I wonder if in the history of China there were many more colors and vibrancy to the different areas of China than there are today. This is enjoyable,” he said. Software engineer Scott Winn attended the performance with his wife Tammy. They were deeply impressed by the athleticism of the performers, who did mid-air flips as if “gravity doesn’t really apply to them,” Mr. Winn said. “The way they can …