I'm having some sort of learner moment. I'm trying to place a translucent scrim over some slot contents. To wit:

Box(modifier = modifier) {
   content()
   if (isUnresponsive) {
      Box(modifier = Modifier
         .height(IntrinsicSize.Max).width(IntrinsicSize.Max).fillMaxWidth().fillMaxSize()
         .background(Color.Green.copy(alpha = 0.5f)).align(Alignment.TopCenter)
...

But I cannot for the life of me get that inner box to show up, layering over the content(). Oddly a BottomCentered Row as a footer that comes right after that Box shows up just fine. I've put some logging statements on a globallyPositioned modifier, and it always reports a zero rect. I'm obviously throwing every "just fill the parent bounds, OK?" modifier at it there. But the contentless box just doesn't measure/layout. What's the headsmack I'm missing?

use height(IntrinsicSize.Max).width(IntrinsicSize.Max) in the parent box. and fillMaxSize in the scrim box. try it

That caused the overlay to show up... but screwed up the content() compositions...

Content should have a modifier

My content is a Column with a fillMaxWidth modifier. It no longer fills the max width now. Or do you mean that the content() function was supposed to take a single argument?

Without the full code its hard. You can also try: drawWithContent drawContent drawRect(color) modifier in the content itself

does drawWithContent clip to the layout bounds?

Its a way to dra above or behind. If you just need overlay color its the best option