You already know that Brand Thunder is the browser theme creator for all of MLB, but for this year’s American League Championship Series (ALCS) and National League Championship Series (NLCS), Brand Thunder has created new exclusive new designs on the “new tab pages” for the final four teams battling it out for the World Series. If you’re a fan of the Detroit Tigers, Boston Red Sox, Los Angeles Dodgers or St. Louis Cardinals, get over to MLB.com and get your team’s OFFICIAL theme and cheer them on to the World Series! Here’s a look at the ALCS and NLCS themes: