Erro ao implementar o tema

Mesmo usando o MainLayout.razon

@inherits LayoutComponentBase

<MudThemeProvider Theme ="@currentTheme"/>
<MudDialogProvider />
<MudSnackbarProvider />

<MudLayout>
    <MudAppBar Color="Color.Surface" Fixed="true" Elevation="2">
        <MudImage Src="assets/img/logo_branca.png"></MudImage>
    </MudAppBar>
    <MudDrawer Open="true" ClipMode="DrawerClipMode.Always" Elevation="2">
        <NavMenu></NavMenu>
    </MudDrawer>
    <MudMainContent class="main-content">
        @Body
    </MudMainContent>
</MudLayout>
@code {
    private MudTheme currentTheme = new MudTheme()
        {
            PaletteLight = EmpresaDigitalPalletDark.CreatePallete,
            // PaletteLight = EmpresaDigitalPalletDark.CreatePallete
        };
}

implementacao do pallet:

using MudBlazor.Utilities;
using MudBlazor;

namespace EmpresaDigital.Doc.Shared
{
    public sealed class EmpresaDigitalPallet : PaletteDark
    {
        private EmpresaDigitalPallet()
        {
            Primary = new MudColor("#3C4452");
            Secondary = new MudColor("#353C48");
            Tertiary = new MudColor("#2F3642");
            Info = new MudColor("#AF52BD");
            Error = new MudColor("#E35C56");
            Warning = new MudColor("#F6B650");
            Success = new MudColor("#56A559");
        }


        public static EmpresaDigitalPallet CreatePallete => new();
    }
    public sealed class EmpresaDigitalPalletDark : PaletteLight
    {
        private EmpresaDigitalPalletDark()
        {
            //Primary = new MudColor("#FFF3FA");
            //Secondary = new MudColor("#CC7AC7");
            //Tertiary = new MudColor("#661461");
            Primary = new MudColor("#9966FF");
            Secondary = new MudColor("#F6AD31");
            Tertiary = new MudColor("#8AE491");
            Info = new MudColor("#AF52BD");
            Error = new MudColor("#E35C56");
            Warning = new MudColor("#F6B650");
            Success = new MudColor("#56A559");
        }
        public static EmpresaDigitalPalletDark CreatePallete => new();

    }
}

tive o mesmo resultado com o menu não aplicando o tema ao menu, notem que nao ha mais um parametro Palette no objeto MudTheme, porem tive o cuidado de extender PaletteLight e PaletteDark, sendo que o

private MudTheme currentTheme = new MudTheme()
        {
            PaletteLight = EmpresaDigitalPalletDark.CreatePallete,
            // PaletteLight = EmpresaDigitalPalletDark.CreatePallete
        };

esta recebendo o objeto correto (PaletteDark ou PaletteLight )