I am speaking of the opening on the green wall. The drywallers were not incredibly talented, and we were planning on dressing it up. Current plan was to line the inner surfaces with thin plywood, mimicking a door jam (again, sans door), and then putting casing around to frame it. This would work well on the full cut out in the other section of the same wall, but not sure how to handle this opening which hits the perpendicular wall.