*Correction, April 20, 2016: The bar chart in this post originally misstated the percentage of logos with clichéd pot leaf design elements. It is 44.1 percent, not 41.1 percent.

Reebok, the Canton-based athletic footwear and apparel brand, said Friday that it is marking a shift in focus, in part by unveiling a new brand symbol. The delta, Reebok said, is not a logo but a ...