aurora/Aurora/App.xaml

<?xml version="1.0" encoding="utf-8"?>
<Application xmlns="http://xamarin.com/schemas/2014/forms" 
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
             xmlns:converters="clr-namespace:Aurora.Frontend.Converters"
             x:Class="Aurora.App">
    <Application.Resources>
        <ResourceDictionary>

            <!-- GENERAL COLORS -->
            <Color x:Key="WhiteColor">#FFFFFF</Color>
            <Color x:Key="BlackColor">#000000</Color>

            <!-- THEME COLORS -->
            <Color x:Key="AccentColor">#F5C210</Color>
            <Color x:Key="ToolbarColor">#151C25</Color>
            <Color x:Key="BackgroundColor">#1E2634</Color>
            <Color x:Key="DarkBackgroundColor">#151C25</Color>
            <Color x:Key="MenuBackgroundColor">#44545C</Color>
            
            <!-- CONVERTERS -->
            <converters:InverseBoolConverter x:Key="InverseBoolConverter" />
            <converters:ToUpperConverter x:Key="ToUpperConverter" />
            
        </ResourceDictionary>
    </Application.Resources>
</Application>