tense present or future anterior

The indicative is a mood (subjunctive, conditional, imperative are also moods). “Après que’ should take the indicative mood (although many French speakers either use subjunctive, or avoid après que by using “après avoir/être  infinitif passé” constructs instead). 

Present and future anterior are tenses. 

All verb conjugations can be classified by both mood and tense, although as indicative is the most common mood, it is not always explicit in lessons/discussion. See first link for a further explanation.

Worth having a second look at both lessons, remembering the distinction between mood and tenses, and then focussing on the different tense use between English and French as noted for the specific situation of ‘après que’ in the future, as in the 2nd link below.  

https://www.laits.utexas.edu/tex/gr/ta1.html

https://progress.lawlessfrench.com/revision/grammar/using-le-futur-anterieur-after-quand-lorsque-apres-que-une-fois-que-to-express-when-after-ive-done-in-sentences-in-future-tense

https://progress.lawlessfrench.com/revision/glossary/mood