GreyScaleModifier

GreyscaleModifiers.kt

class GreyScaleModifier : DrawModifier {
    override fun ContentDrawScope.draw() {
        val saturationMatrix = ColorMatrix().apply { setToSaturation(0f) }
        val saturationFilter = ColorFilter.colorMatrix(saturationMatrix)
        val paint = Paint().apply {
            colorFilter = saturationFilter
        }
        drawIntoCanvas {
            it.saveLayer(Rect(0f, 0f, size.width, size.height), paint)
            drawContent()
            it.restore()
        }
    }
}

fun Modifier.greyScale() = this.then(GreyScaleModifier())

Is it not possible to create the color matrix and the paint instance as a field, so that it doesn't get created each time draw is called? 🤔