Complex photo

GreyscaleModifiers.kt

@Composable
fun PhotoScene(modifier: Modifier = Modifier, showGrey: Boolean) {
    val backgroundColor = if (showGrey) {
        Color.LightGray
    } else {
        Sunlight
    }
    val textColor = if (showGrey) {
        Color.Gray
    } else {
        Pink
    }
    val photoColorFilter = if (showGrey) {
        ColorFilter.colorMatrix(ColorMatrix().apply { setToSaturation(0f) })
    } else {
        null
    }
    Column(modifier.background(backgroundColor)) {
        Image(
            painter = painterResource(drawable.rose),
            contentDescription = "Scene",
            colorFilter = photoColorFilter,
            modifier = Modifier
                .fillMaxWidth()
                .aspectRatio(1f)
        )
        val hexColor = String.format("#%06X", 0xFFFFFF and Pink.toArgb())
        Text(text = "This is $hexColor text and a photo\n", color = textColor, textAlign = TextAlign.Center, modifier = Modifier.fillMaxWidth().padding(4.dp))
    }
}