git - Change github account credentials -

i trying push github account repo using same computer's android studio. somehow when pushed it, asked credentials of new account.

but right trying work on previous github repo not have access believe still logged on previous account? how screen pops asking github credentials when pushing?

i have tried going file -> settings-> version control-> github , changed account seems logged in on wrong account.

ps: while using command-line function of git solve issue. defeats purpose of integration. integration of github android studio neat , easy way handle repo , love solve issue.

please see attached pop-up login referring to. how back?