Starbucks, Tesla, and Powell: Business news roundup

Starbucks (SBUX) is tweaking its dress code in an effort to showcase its “iconic green apron,” the company announced Tuesday.
Starting May 12, baristas across the company’s North American stores will be required to wear a solid black shirt under their aprons to “focus on simplified color options that allow our iconic green apron to shine and create a sense of familiarity for our customers,” the company said in a press release. Employees will be required to wear khaki, black, or blue denim bottoms.