Exactly. The ones that are highlighted are the teams in the top 21 (since UT comes in at 21) that Bama will face in the fall.
Ole Miss is in at #39
Arkansas is at #48
Bama could easily face the #2, #3, and #4 ranked teams in the S&P+ before the '19 season is concluded. If Florida sneaks in, there's a #6 popping up. And yet, we're going to see "it's all about Bama's schedule" by the time October comes around--if not sooner.