If that drywall is finished well I would just leave it as is. You need baseboard so do that and then see if you feel you need trim on windows.

Thank you. We will be putting down baseboard and trim around stairs etc. next week. Nice, tall, squared contemporary trim (sorry old builders mahogany!). I’m thinking of some light-filtering cellular shades in the window frames just for privacy when we want it.

Because I am concerned about having drywall in contact with the metal framing of the basement windows, I used PVC for the sill and sides to cover the wall framing. No further trim has been added. Simply a Venetion blind to diffuse the window well.

Thank you. That’s a good thought. We’re in a cold climate, so there is some condensation in the winter.

No trim is required.

no trim.

plantation shutter might be interesting, but spendy if you are on a budget.

Nice Job!