Border and Flouttext disappear

[MarkoShenodaa]

<UserControl
    x:Class="AvaloniaApplication1.Views.MainView"
    xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:p1="using:Material.Styles.Assists"
    xmlns:vm="clr-namespace:AvaloniaApplication1.ViewModels"
    d:DesignHeight="450"
    d:DesignWidth="800"
    x:DataType="vm:MainViewModel"
    mc:Ignorable="d">
    <Design.DataContext>
        <!--
            This only sets the DataContext for the previewer in an IDE,
            to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs)
        -->
        <vm:MainViewModel />
    </Design.DataContext>
    <TextBox
        Width="200"
        VerticalAlignment="Top"
        p1:TextFieldAssist.Label="Test TExt"
        Classes="outline clearButton" 
		Theme="{StaticResource OutlineTextBox}"
        UseFloatingWatermark="True" />
</UserControl>



<Application
    x:Class="AvaloniaApplication1.App"
    xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:themes="using:Material.Styles.Themes"
    RequestedThemeVariant="Default">
    <!--  "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options.  -->

    <Application.Styles>
        <themes:MaterialTheme BaseTheme="Inherit"/>
    </Application.Styles>
</Application>

when the textbox focused the border and the floatingwatermak disappear

[MarkoShenodaa]

i found that i must set the PrimaryColor and SecondaryColor