How to use QuickGrid's upcoming RowClass feature

In .NET 10, QuickGrid will know how to assign a class to rows dynamically. I can't find a sample program nor the SampleQuickGridComponent mentioned in the PR, so I made a demo on github. The gist is:

@page "/"<div>    We want something like:<table class="quickgrid"><thead><tr><th></th></tr></thead><tbody><tr class="make-me-green"><td>green</td></tr><tr><td>plain</td></tr></tbody></table></div><div>    and we get:<QuickGrid Items=@items.AsQueryable() RowClass=GetRowCssClass><PropertyColumn Property="c => c" /></QuickGrid></div>@code {    static readonly string[] items = { "green", "plain" };    private string GetRowCssClass(string item) => "make-me-" + item;}

But, using the fresh .NET 10 release candidate and Visual Studio 2026 Insiders, the RowClass attribute is not interpreted and simply passed on to the generated HTML as <table…rowclass="GetRowCssClass">, as if it the project was targeting .NET 9. So how do we enable the feature? Is there working sample code somewhere?