AreaMark Always alignsMarkStylesWithPlotArea for linear gradients

I'm trying to make a Swift Chart where 24 AreaMarks an hour apart on X axis over a day display a vertical gradient.

The gradient is vertical and is essentially [Color.opacity(0.1),Colour,Color.opacity(0.1]

The idea here is where the upper and lower points of each AreaMark are the same or close to each other in the Y axis, the chart essentially displays a line, where they are far apart you get a nice fading vertical gradient.

However, it seems that the .alignsMarkStylesWithPlotArea modifier is always set for AreaMarks even if manually applying it false.

Investigating further, I've learnt that with AreaMarks in a series, Swift Charts seems to only listen to the first foreground style set in. I've created some sample code to demonstrate this.

struct DemoChartView: View {
    var body: some View {
        Chart {
            AreaMark(x: .value("Time", Date().addingTimeInterval(0)), yStart: .value("1", 40), yEnd: .value("2", 60))
                .foregroundStyle(LinearGradient(colors: [.pink, .teal], startPoint: .top, endPoint: .bottom))
                .alignsMarkStylesWithPlotArea(false)
            AreaMark(x: .value("Time", Date().addingTimeInterval(3600)), yStart: .value("1", 44), yEnd: .value("2", 58))
                .foregroundStyle(LinearGradient(colors: [.orange, .yellow], startPoint: .top, endPoint: .bottom))
                .alignsMarkStylesWithPlotArea(false)
            AreaMark(x: .value("Time", Date().addingTimeInterval(03600*2)), yStart: .value("1", 50), yEnd: .value("2", 90))
                .foregroundStyle(LinearGradient(colors: [.green, .blue], startPoint: .top, endPoint: .bottom))
                .alignsMarkStylesWithPlotArea(false)
        }

    }
}

Which produces this:

So here, all the different .foregroundStyle LinearGradients are being ignored AND the .alignsMarkStylesWithPlotArea(false) is also ignored - the amount of pink on the first mark is different to the second and third 🤷‍♂️

Has anyone encountered this. Are AreaMarks the correct choice or are they just not setup to create this type of data display. Thanks