MudMenuColorsCheck.razor

<MudLayout>
    <MudAppBar Elevation="2" Dense="true" Style="@($"background:{Colors.Indigo.Darken2};")">
            <MudIconButton Icon="@Icons.Material.Filled.Menu" Color="Color.Inherit" Edge="Edge.Start" OnClick="@ToggleDrawer"/>
            <MudButtonGroup Color="Color.Primary" Variant="Variant.Filled">
                <MudButton Size="Size.Small" Class="ma-0 rounded-pill">ScenarioTest</MudButton>
            </MudButtonGroup>
    </MudAppBar>  
    <MudDrawer @bind-Open="@open" Elevation="1" Style="@($"color:{Colors.Cyan.Lighten3}; background:{Colors.LightBlue.Darken3};")">
        <MudDrawerHeader>
            <MudText Typo="Typo.h5" Style="@($"color:{Colors.LightBlue.Lighten5};")">TestManager</MudText>
        </MudDrawerHeader>
        <MudNavLink  Href="/service" Icon="@Icons.Outlined.List" IconColor="Color.Tertiary" Style="color:var(--mud-palette-tertiary)">serviceList</MudNavLink>
        <MudNavLink  Href="/service" Icon="@Icons.Outlined.List" IconColor="Color.Tertiary" Style="@($"color:{Colors.LightBlue.Lighten5};")">servicetestList</MudNavLink>
    </MudDrawer>
    <MudMainContent Class="px-2 pb-2">
        <MudContainer Class="mt-5" Fixed="true" MaxWidth="MaxWidth.False" Style="height: 90% ">
        </MudContainer>
    </MudMainContent>
</MudLayout>
<MudThemeProvider Theme="currentTheme" />

<MudButton OnClick="@((e) => DarkMode())">Toggle Dark/Light Mode</MudButton>
@code{

    protected override void OnInitialized()
    {
        currentTheme = defaultTheme;
    }

    void DarkMode()
    {
        if (currentTheme == defaultTheme)
        {
            currentTheme = darkTheme;
        }
        else
        {
            currentTheme = defaultTheme;
        }
    }

    MudTheme currentTheme = new MudTheme();
    MudTheme defaultTheme = new MudTheme()
    {
        Palette = new Palette()
        {
            Black = "#272c34"
        }
    };

    MudTheme darkTheme = new MudTheme()
    {
        Palette = new Palette()
        {
       Black  = "#000",
       White  = "#000",
       Primary  = "#000",
       PrimaryContrastText  = "#000",
       Secondary  = "#000",
       SecondaryContrastText  = "#000",
       Tertiary  = "#000",
       TertiaryContrastText  = "#000",
       Info  = "#000",
       InfoContrastText  = "#000",
       Success  = "#000",
       SuccessContrastText  = "#000",
       Warning  = "#000",
       WarningContrastText  = "#000",
       Error  = "#000",
       ErrorContrastText  = "#000",
       Dark  = "#000",
       DarkContrastText  = "#000",
       TextPrimary  = "#000",
       TextSecondary  = "#000",
       TextDisabled  = "#000",
       ActionDefault  = "#000",
       ActionDisabled  = "#000",
       ActionDisabledBackground  = "#000",
       Background  = "#000",
       BackgroundGrey  = "#000",
       Surface  = "#000",
       DrawerBackground  = "#000",
       DrawerText  = "#000",
       DrawerIcon  = "#000",
       AppbarBackground  = "#000",
       AppbarText  = "#000",
       LinesDefault  = "#000",
       LinesInputs  = "#000",
       TableLines  = "#000",
       TableStriped  = "#000",
       TableHover  = "#000",
       Divider  = "#000",
       DividerLight  = "#000"
        }
    };
    bool open = false;

    void ToggleDrawer()
    {
        open = !open;
    }
}
<!-- <style>
    .mud-nav-link-text {
        color: var(--mud-palette-tertiary) !important;
    }
</style> -->