Theme.php

<?php
namespace LaravelCms\Theme;

class Theme
{
    /**
     * Theme constructor
     *
     * @return void
     * @access public
     */
    public function __construct()
    {
        \View::addNamespace('theme', base_path('themes') . '/default');
    }
}

ThemeServiceProvider.php

<?php
namespace LaravelCms\Theme;

class ThemeServiceProvider extends \Illuminate\Support\ServiceProvider
{

    /**
     * Indicates if loading of the provider is deferred.
     *
     * @var bool
     */
    protected $defer = false;

    /**
     * Register the service provider.
     *
     * @return void
     */
    public function register()
    {
        $this->app->bind('theme', function ()
        {
            return new Theme();
        });

        $this->app->singleton('theme.crumbs', function ()
        {
            return new Breadcrumb();
        });

        $this->app->singleton('theme.menu', function ()
        {
            return new Menu();
        });
    }
}