listOf(IPoint(100.0, 100.0), IPoint(100.0, 400.0)), IPoint(200.0, 0.0), IPoint(300.0, 400.0), IPoint(300.0, 100.0))
seems to produce this exception:
@@com.soywiz.korma.triangle.poly2tri.Poly2Tri$PointError: poly2tri EdgeEvent: Collinear not supported! [(175, 100), (175, 100), (100, 100)]