Hibs' revival has been remarkable after starting the campaign looking like a team who would be battling relegation.
Nicky Cadden has been one of the stars of their turnaround, and when he departed after 20 minutes with a facial injury the question was whether others could step up.
Boyle and Triantis have both done so in recent weeks, and again they were at the heart of things.
Having Boyle back to his best, making runs in behind and coming to life in the penalty area, is a huge asset.
And he crept into the box to provide the spark after a dire opening quarter. The Australia forward's composure from the penalty spot for the second week in a row proved decisive, too, as he added number seven in the league this season.
Triantis, at just 21, is starting to look the complete midfielder as he gets stuck into challenges, reads play brilliantly, while also making rangy runs forward.
The quality of his finish for second goal was on par with any forward in the league, and any who doubted Hibs bringing him back after a questionable loan spell last season should now know exactly why Gray opted to do so.
Hibs are now aiming for European football rather than looking over their shoulder after a run of just one defeat in 10 games.