LanceMcCarthy

public static class FileExtensions
{
    private static readonly string LocalFolder;

    static FileExtensions()
    {
        // Gets the target platform's valid save location
        LocalFolder = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
    }

LanceMcCarthy

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:dataControls="clr-namespace:Telerik.XamarinForms.DataControls;assembly=Telerik.XamarinForms.DataControls"
             xmlns:input="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
             x:Class="TelerikXamarinApp1.Portable.StartPage">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />

LanceMcCarthy

using Telerik.XamarinForms.Common;
using Xamarin.Forms;

namespace YourAwesomeApp.Helpers
{
    public static class ThemeHelper
    {
        public static void ChangeTheme(string themeName)
        {
            if(Application.Current.Resources != null)

LanceMcCarthy

<ResourceDictionary xmlns="http://xamarin.com/schemas/2014/forms"
                    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                    x:Class="TelerikXamarinApp1.Portable.Themes.CustomTheme">

    <!-- Chart -->
    <Color x:Key="ChartAxisColor">#919191</Color>
    <Color x:Key="ChartGridLinesColor">#D9D9D9</Color>

    <!-- ListView -->
    <Color x:Key="ListViewItemBorderColor">Azure</Color>

LanceMcCarthy

public class ItemViewModel 
{
    public string Title { get; set; }
    public string ThumbnailUrl { get; set; }
    public List<string> Details { get; set; }
}

LanceMcCarthy

using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using DetailsDrawer.Annotations;

namespace DetailsDrawer.ViewModels
{
    public class MainPageViewModel : INotifyPropertyChanged
    {
        private ObservableCollection<RouteStep> routeSteps;

LanceMcCarthy

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;

namespace DetailsDrawer
{
    public sealed partial class MainPage : Page
    {
        public MainPage()

LanceMcCarthy

<Page x:Class="DetailsDrawer.MainPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:local="using:DetailsDrawer"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      xmlns:viewModels="using:DetailsDrawer.ViewModels"
      mc:Ignorable="d">

    <Page.DataContext>

LanceMcCarthy

[DataContract]
    public class ThemeModel : INotifyPropertyChanged
    {
        private Color backgroundColor;
        private Color textColor;
        private Color buttonBackgroundColor;
        private Color buttonTextColor;
        private Color accentColor;
        private Color headerColor;

LanceMcCarthy

public class FadeHeaderBehavior : Behavior<FrameworkElement>
    {
        public static readonly DependencyProperty HeaderElementProperty = DependencyProperty.Register(
            "HeaderElement", typeof(UIElement), typeof(FadeHeaderBehavior), new PropertyMetadata(null, PropertyChangedCallback));

        public UIElement HeaderElement
        {
            get { return (UIElement) GetValue(HeaderElementProperty); }
            set { SetValue(HeaderElementProperty, value); }
        }