It's time for another visit with Midday theater critic J. Wynn Rousuck, who joins us each week with her reviews of the mid-Atlantic regional stage.“The Code Switch,” a Sisters Freehold Production, continues at the Theatre Project through July 30. So, what does the term “code switching” means to this production? Playwright Shakill Jamal uses a range of techniques that depart from conventional plot and characters. (Photo by Bayou Elom)Email us at midday@wypr.org, tweet us: @MiddayWYPR, or call us at 410-662-8780.