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Breaking Change T1022262
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Charts – Color properties now support Alpha channel

What Changed

You can now specify color transparency (sRGB alpha channel) in the Chart and its nested components.

Reasons for Change

In previous versions, the Color.A property value did not affect color transparency. In the following code, the Chart treats the Color="Color.FromArgb(48, 95, 54, 141)" line as Color="Color.FromArgb(95, 54, 141)".

Razor
<DxChart Data="@SalesData"> 
    <DxChartLineSeries Name="2019" 
                       Filter="@((SaleInfo s) => s.Date.Year == 2019)" 
                       ArgumentField="@(s => s.City)" 
                       ValueField="@(s => s.Amount)" 
                       SummaryMethod="Enumerable.Sum" 
                       Color="Color.FromArgb(48, 95, 54, 141)" /> 
</DxChart>

blazor-dxchart-no-alpha-channel.png

In v21.2, the Chart takes the alpha channel value into account. Now, the series has another transparency value with the same code.

blazor-dxchart-color-with-alpha-channel.png

Impact on Existing Apps

This change impacts your application if you specified the alpha channel value of the color.

How to Revert to Previous Behavior

Remove the sRGB alpha channel value definition.

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