To your Instant Pot liner, add: chicken, pineapple chunks (juice included), diced peppers, ginger, honey, and soy sauce. Close and lock lid, and close vent.
Press Pressure Cook button, and set time for 10 minutes. Once done, press Cancel and allow to NPR for 15 minutes. Then release all remaining pressure.
Stir contents in the Instant Pot to mix well. Press Sauté button, and add both light brown and dark brown sugar. Stir until well dissolved.
Once sugars have been dissolved, allow mixture to cook until mixture starts to boil. Once you start seeing it come to boil, add in your corn starch slurry and it will start to thicken.
Press the Cancel button to stop it from cooking further.