fun main() = Window {
    Canvas(Modifier.fillMaxSize()) {
        val d = size.minDimension
        val r = d / 2f
        val offset = Offset((size.width / 2f - r), size.height / 2f - r)
        drawArc(
            color = Color.Green,
            size = Size(d - offset.x, d - offset.y),
            topLeft = offset,
            startAngle = -90f,
            sweepAngle = 270f,
            useCenter = true
        )
    }
}