LPLocalhostMES/LocalhostMES/App.xaml

<prism:PrismApplication x:Class="LocalhostMES.App"
                        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                        xmlns:prism="http://prismlibrary.com/"
                        xmlns:conv="clr-namespace:LocalhostMES.Converters">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/Views/Resources/MesTabStyles.xaml" />
            </ResourceDictionary.MergedDictionaries>
            <conv:ResultColorConverter x:Key="ResultColorConverter" />
        </ResourceDictionary>
    </Application.Resources>
</prism:PrismApplication>