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I am trying to draw a gradient on the integrity of the screen as a fixed layer, for some reason I am not getting any preview, am I doing this wrong?
```Box(modifier = Modifier.height(100.dp).width(100.dp).drawBehind {
        HorizontalGradient(
            0.0f to Color.Red,
            0.5f to Color.Green,
            1.0f to Color.Blue,
            startX = 0.0f,
            endX = 100.0f
        )
    })```

never mind the `height` and `width` i am setting on the example

`HorizontalGradient` is a factory function for a gradient `Brush`. It's returning an object that you are not using. Save it in a `val` and use it as a `Brush` argument to one or more `draw*` functions in the `drawBehind`  block.

You can also use `drawWithCache` to give yourself a place to create brushes and similar once, or only when they change, rather than every time it draws:
```    Modifier.drawWithCache {
        val brush = HorizontalGradient(...)
        onDraw {
            drawCircle(brush, ...)
        }
    }```

You can also use `size` from the `DrawScope` for the width or height for your startX or endX

<@UJBKXD0HH> that’s exactly what i was looking for. Thanks a lot!