diff --git a/app/admin.php b/app/admin.php
index ba6979a..d8b08d5 100644
--- a/app/admin.php
+++ b/app/admin.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 /**
  * Theme customizer
diff --git a/app/controllers/About.php b/app/controllers/About.php
index 54f1039..f344008 100644
--- a/app/controllers/About.php
+++ b/app/controllers/About.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 use Sober\Controller\Controller;
 
diff --git a/app/controllers/App.php b/app/controllers/App.php
index 433f82d..f337273 100644
--- a/app/controllers/App.php
+++ b/app/controllers/App.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 use Sober\Controller\Controller;
 
-class App extends Controller
+class Aldine extends Controller
 {
     public function siteName()
     {
@@ -17,16 +17,16 @@ class App extends Controller
             if ($home = get_option('page_for_posts', true)) {
                 return get_the_title($home);
             }
-            return __('Latest Posts', 'pressbooks-aldine');
+            return __('Latest Posts', 'aldine');
         }
         if (is_archive()) {
             return get_the_archive_title();
         }
         if (is_search()) {
-            return sprintf(__('Search Results for %s', 'pressbooks-aldine'), get_search_query());
+            return sprintf(__('Search Results for %s', 'aldine'), get_search_query());
         }
         if (is_404()) {
-            return __('Not Found', 'pressbooks-aldine');
+            return __('Not Found', 'aldine');
         }
         return get_the_title();
     }
diff --git a/app/controllers/Home.php b/app/controllers/Home.php
index 5b736ca..f1f8432 100644
--- a/app/controllers/Home.php
+++ b/app/controllers/Home.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 use Sober\Controller\Controller;
 
diff --git a/app/filters.php b/app/filters.php
index 77af423..a3c24fd 100644
--- a/app/filters.php
+++ b/app/filters.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 /**
  * Add <body> classes
@@ -30,7 +30,7 @@ add_filter('body_class', function (array $classes) {
  * Add "… Continued" to the excerpt
  */
 add_filter('excerpt_more', function () {
-    return ' &hellip; <a href="' . get_permalink() . '">' . __('Continued', 'pressbooks-aldine') . '</a>';
+    return ' &hellip; <a href="' . get_permalink() . '">' . __('Continued', 'aldine') . '</a>';
 });
 
 /**
diff --git a/app/helpers.php b/app/helpers.php
index 71f4e24..bfb2610 100644
--- a/app/helpers.php
+++ b/app/helpers.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 use Roots\Sage\Container;
 
diff --git a/app/setup.php b/app/setup.php
index 0636138..55f82ff 100644
--- a/app/setup.php
+++ b/app/setup.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 use Roots\Sage\Container;
 use Roots\Sage\Assets\JsonManifest;
@@ -46,7 +46,7 @@ add_action('after_setup_theme', function () {
      * @link https://developer.wordpress.org/reference/functions/register_nav_menus/
      */
     register_nav_menus([
-        'primary_navigation' => __('Primary Navigation', 'pressbooks-aldine')
+        'primary_navigation' => __('Primary Navigation', 'aldine')
     ]);
 
     /**
@@ -85,23 +85,23 @@ add_action('widgets_init', function () {
         'after_title'   => '</h3>'
     ];
     register_sidebar([
-        'name'          => __('Home Block 1', 'pressbooks-aldine'),
+        'name'          => __('Home Block 1', 'aldine'),
         'id'            => 'home-block-1'
     ] + $config);
     register_sidebar([
-        'name'          => __('Home Block 2', 'pressbooks-aldine'),
+        'name'          => __('Home Block 2', 'aldine'),
         'id'            => 'home-block-2'
     ] + $config);
     register_sidebar([
-        'name'          => __('Home Block 3', 'pressbooks-aldine'),
+        'name'          => __('Home Block 3', 'aldine'),
         'id'            => 'home-block-3'
     ] + $config);
     register_sidebar([
-        'name'          => __('Home Block 4', 'pressbooks-aldine'),
+        'name'          => __('Home Block 4', 'aldine'),
         'id'            => 'home-block-4'
     ] + $config);
     register_sidebar([
-        'name'          => __('Home Block 5', 'pressbooks-aldine'),
+        'name'          => __('Home Block 5', 'aldine'),
         'id'            => 'home-block-5'
     ] + $config);
 });
diff --git a/app/widgets.php b/app/widgets.php
index 20dd6f9..375614f 100644
--- a/app/widgets.php
+++ b/app/widgets.php
@@ -1,8 +1,23 @@
 <?php
 
-namespace App;
+namespace Aldine;
 
 add_action('widgets_init', function () {
+    foreach([
+        'WP_Widget_Pages',
+        'WP_Widget_Calendar',
+        'WP_Widget_Archives',
+        'WP_Widget_Links',
+        'WP_Widget_Media_Audio',
+        'WP_Widget_Meta',
+        'WP_Widget_Search',
+        'WP_Widget_Categories',
+        'WP_Widget_Recent_Posts',
+        'WP_Widget_Recent_Comments',
+        'WP_Widget_Tag_Cloud'
+    ] as $widget) {
+        unregister_widget($widget);
+    }
     register_widget('Aldine\LinkButton');
     register_widget('Aldine\PageButton');
 });
diff --git a/app/widgets/linkbutton.php b/app/widgets/linkbutton.php
index 19810d1..9824409 100644
--- a/app/widgets/linkbutton.php
+++ b/app/widgets/linkbutton.php
@@ -12,8 +12,8 @@ class LinkButton extends \WP_Widget
      */
     public function __construct()
     {
-        parent::__construct('linkbutton', __('Link Button', 'pressbooks-aldine'), [
-            'description' => esc_html__('Add a styled link button.', 'pressbooks-aldine')
+        parent::__construct('linkbutton', __('Link Button', 'aldine'), [
+            'description' => esc_html__('Add a styled button which links to a custom URL.', 'aldine')
         ]);
     }
 
@@ -45,9 +45,9 @@ class LinkButton extends \WP_Widget
     {
         $title = ! empty($instance['title']) ? $instance['title'] : '';
         $url = ! empty($instance['url']) ? $instance['url'] : ''; ?>
-        <p><label for="<?php echo esc_attr($this->get_field_id('title')); ?>"><?php esc_attr_e('Title:', 'pressbooks-aldine'); ?></label>
+        <p><label for="<?php echo esc_attr($this->get_field_id('title')); ?>"><?php esc_attr_e('Title:', 'aldine'); ?></label>
         <input class="widefat" id="<?php echo esc_attr($this->get_field_id('title')); ?>" name="<?php echo esc_attr($this->get_field_name('title')); ?>" type="text" value="<?php echo esc_attr($title); ?>"></p>
-        <p><label for="<?php echo esc_attr($this->get_field_id('url')); ?>"><?php esc_attr_e('URL:', 'pressbooks-aldine'); ?></label>
+        <p><label for="<?php echo esc_attr($this->get_field_id('url')); ?>"><?php esc_attr_e('URL:', 'aldine'); ?></label>
         <input class="widefat code" id="<?php echo esc_attr($this->get_field_id('url')); ?>" name="<?php echo esc_attr($this->get_field_name('url')); ?>" type="text" value="<?php echo esc_attr($url); ?>"></p>
     <?php
     }
diff --git a/app/widgets/pagebutton.php b/app/widgets/pagebutton.php
index 0780366..ea9ecc6 100644
--- a/app/widgets/pagebutton.php
+++ b/app/widgets/pagebutton.php
@@ -12,8 +12,8 @@ class PageButton extends \WP_Widget
      */
     public function __construct()
     {
-        parent::__construct('pagebutton', __('Page Button', 'pressbooks-aldine'), [
-            'description' => esc_html__('Add a styled button which links to a page.', 'pressbooks-aldine')
+        parent::__construct('pagebutton', __('Page Button', 'aldine'), [
+            'description' => esc_html__('Add a styled button which links to a page.', 'aldine')
         ]);
     }
 
@@ -48,9 +48,9 @@ class PageButton extends \WP_Widget
     {
         $title = ! empty($instance['title']) ? $instance['title'] : '';
         $url = ! empty($instance['page_id']) ? $instance['page_id'] : ''; ?>
-        <p><label for="<?php echo esc_attr($this->get_field_id('title')); ?>"><?php esc_attr_e('Title:', 'pressbooks-aldine'); ?></label>
+        <p><label for="<?php echo esc_attr($this->get_field_id('title')); ?>"><?php esc_attr_e('Title:', 'aldine'); ?></label>
         <input class="widefat" id="<?php echo esc_attr($this->get_field_id('title')); ?>" name="<?php echo esc_attr($this->get_field_name('title')); ?>" type="text" value="<?php echo esc_attr($title); ?>"></p>
-        <p><label for="<?php echo esc_attr($this->get_field_id('page_id')); ?>"><?php esc_attr_e('Page:', 'pressbooks-aldine'); ?></label>
+        <p><label for="<?php echo esc_attr($this->get_field_id('page_id')); ?>"><?php esc_attr_e('Page:', 'aldine'); ?></label>
         <select id="<?php echo esc_attr($this->get_field_id('page_id')); ?>" name="<?php echo esc_attr($this->get_field_name('page_id')); ?>">
             <option value="" <?php selected($instance['page_id'], ''); ?>> -- </a>
             <?php $pages = get_pages();
diff --git a/composer.json b/composer.json
index c287996..9001fe0 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
   },
   "autoload": {
     "psr-4": {
-      "App\\": "app/"
+      "Aldine\\": "app/"
     }
   },
   "require": {
diff --git a/resources/functions.php b/resources/functions.php
index 76d7e8d..233a945 100644
--- a/resources/functions.php
+++ b/resources/functions.php
@@ -14,7 +14,7 @@ use Roots\Sage\Container;
  * @param string $title
  */
 $sage_error = function ($message, $subtitle = '', $title = '') {
-    $title = $title ?: __('Sage &rsaquo; Error', 'pressbooks-aldine');
+    $title = $title ?: __('Sage &rsaquo; Error', 'aldine');
     $footer = '<a href="https://roots.io/sage/docs/">roots.io/sage/docs/</a>';
     $message = "<h1>{$title}<br><small>{$subtitle}</small></h1><p>{$message}</p><p>{$footer}</p>";
     wp_die($message, $title);
@@ -24,14 +24,14 @@ $sage_error = function ($message, $subtitle = '', $title = '') {
  * Ensure compatible version of PHP is used
  */
 if (version_compare('7', phpversion(), '>=')) {
-    $sage_error(__('You must be using PHP 7 or greater.', 'pressbooks-aldine'), __('Invalid PHP version', 'pressbooks-aldine'));
+    $sage_error(__('You must be using PHP 7 or greater.', 'aldine'), __('Invalid PHP version', 'aldine'));
 }
 
 /**
  * Ensure compatible version of WordPress is used
  */
 if (version_compare('4.7.0', get_bloginfo('version'), '>=')) {
-    $sage_error(__('You must be using WordPress 4.7.0 or greater.', 'pressbooks-aldine'), __('Invalid WordPress version', 'pressbooks-aldine'));
+    $sage_error(__('You must be using WordPress 4.7.0 or greater.', 'aldine'), __('Invalid WordPress version', 'aldine'));
 }
 
 /**
@@ -40,8 +40,8 @@ if (version_compare('4.7.0', get_bloginfo('version'), '>=')) {
 if (!class_exists('Roots\\Sage\\Container')) {
     if (!file_exists($composer = __DIR__.'/../vendor/autoload.php')) {
         $sage_error(
-            __('You must run <code>composer install</code> from the Sage directory.', 'pressbooks-aldine'),
-            __('Autoloader not found.', 'pressbooks-aldine')
+            __('You must run <code>composer install</code> from the Sage directory.', 'aldine'),
+            __('Autoloader not found.', 'aldine')
         );
     }
     require_once $composer;
@@ -56,7 +56,7 @@ if (!class_exists('Roots\\Sage\\Container')) {
 array_map(function ($file) use ($sage_error) {
     $file = "../app/{$file}.php";
     if (!locate_template($file, true, true)) {
-        $sage_error(sprintf(__('Error locating <code>%s</code> for inclusion.', 'pressbooks-aldine'), $file), 'File not found');
+        $sage_error(sprintf(__('Error locating <code>%s</code> for inclusion.', 'aldine'), $file), 'File not found');
     }
 }, ['helpers', 'setup', 'filters', 'admin', 'widgets', 'widgets/linkbutton', 'widgets/pagebutton']);
 
diff --git a/resources/style.css b/resources/style.css
index e49bb70..41c21be 100644
--- a/resources/style.css
+++ b/resources/style.css
@@ -5,7 +5,7 @@ Description:        Aldine is the root theme for Pressbooks networks.
 Version:            1.0.0-dev
 Author:             Pressbooks (Book Oven Inc.)
 Author URI:         https://pressbooks.org
-Text Domain:        sage
+Text Domain:        aldine
 
 License:            MIT License
 License URI:        http://opensource.org/licenses/MIT
diff --git a/resources/views/404.blade.php b/resources/views/404.blade.php
index b00e46b..bbe0039 100644
--- a/resources/views/404.blade.php
+++ b/resources/views/404.blade.php
@@ -5,7 +5,7 @@
 
   @if (!have_posts())
     <div class="alert alert-warning">
-      {{ __('Sorry, but the page you were trying to view does not exist.', 'pressbooks-aldine') }}
+      {{ __('Sorry, but the page you were trying to view does not exist.', 'aldine') }}
     </div>
     {!! get_search_form(false) !!}
   @endif
diff --git a/resources/views/index.blade.php b/resources/views/index.blade.php
index 3cbc730..4f149c1 100644
--- a/resources/views/index.blade.php
+++ b/resources/views/index.blade.php
@@ -4,8 +4,8 @@
   @if($block_count === 0)
     <div class="block block-1">
       <div class="inside">
-        <h3>{{ __('About Pressbooks', 'pressbooks-aldine')}}</h3>
-        <p>{{ __('Pressbooks is easy-to-use book writing software that lets you create a book in all the formats you need to publish.', 'pressbooks-aldine')}}</p>
+        <h3>{{ __('About Pressbooks', 'aldine')}}</h3>
+        <p>{{ __('Pressbooks is easy-to-use book writing software that lets you create a book in all the formats you need to publish.', 'aldine')}}</p>
       </div>
     </div>
   @elseif($block_count < 5)
diff --git a/resources/views/layouts/app.blade.php b/resources/views/layouts/app.blade.php
index 20c7746..e9bc7a6 100644
--- a/resources/views/layouts/app.blade.php
+++ b/resources/views/layouts/app.blade.php
@@ -10,7 +10,7 @@
         <main class="main">
           @yield('content')
         </main>
-        @if (App\display_sidebar())
+        @if (Aldine\display_sidebar())
           <aside class="sidebar">
             @include('partials.sidebar')
           </aside>
diff --git a/resources/views/partials/comments.blade.php b/resources/views/partials/comments.blade.php
index ad6ff8c..265009b 100644
--- a/resources/views/partials/comments.blade.php
+++ b/resources/views/partials/comments.blade.php
@@ -7,7 +7,7 @@ if (post_password_required()) {
 <section id="comments" class="comments">
   @if (have_comments())
     <h2>
-      {!! sprintf(_nx('One response to &ldquo;%2$s&rdquo;', '%1$s responses to &ldquo;%2$s&rdquo;', get_comments_number(), 'comments title', 'pressbooks-aldine'), number_format_i18n(get_comments_number()), '<span>' . get_the_title() . '</span>') !!}
+      {!! sprintf(_nx('One response to &ldquo;%2$s&rdquo;', '%1$s responses to &ldquo;%2$s&rdquo;', get_comments_number(), 'comments title', 'aldine'), number_format_i18n(get_comments_number()), '<span>' . get_the_title() . '</span>') !!}
     </h2>
 
     <ol class="comment-list">
@@ -18,10 +18,10 @@ if (post_password_required()) {
       <nav>
         <ul class="pager">
           @if (get_previous_comments_link())
-            <li class="previous">@php(previous_comments_link(__('&larr; Older comments', 'pressbooks-aldine')))</li>
+            <li class="previous">@php(previous_comments_link(__('&larr; Older comments', 'aldine')))</li>
           @endif
           @if (get_next_comments_link())
-            <li class="next">@php(next_comments_link(__('Newer comments &rarr;', 'pressbooks-aldine')))</li>
+            <li class="next">@php(next_comments_link(__('Newer comments &rarr;', 'aldine')))</li>
           @endif
         </ul>
       </nav>
@@ -30,7 +30,7 @@ if (post_password_required()) {
 
   @if (!comments_open() && get_comments_number() != '0' && post_type_supports(get_post_type(), 'comments'))
     <div class="alert alert-warning">
-      {{ __('Comments are closed.', 'pressbooks-aldine') }}
+      {{ __('Comments are closed.', 'aldine') }}
     </div>
   @endif
 
diff --git a/resources/views/partials/content-page.blade.php b/resources/views/partials/content-page.blade.php
index 828fad1..e820fe4 100644
--- a/resources/views/partials/content-page.blade.php
+++ b/resources/views/partials/content-page.blade.php
@@ -1,2 +1,2 @@
 @php(the_content())
-{!! wp_link_pages(['echo' => 0, 'before' => '<nav class="page-nav"><p>' . __('Pages:', 'pressbooks-aldine'), 'after' => '</p></nav>']) !!}
+{!! wp_link_pages(['echo' => 0, 'before' => '<nav class="page-nav"><p>' . __('Pages:', 'aldine'), 'after' => '</p></nav>']) !!}
diff --git a/resources/views/partials/content-single.blade.php b/resources/views/partials/content-single.blade.php
index 7958c66..b570d83 100644
--- a/resources/views/partials/content-single.blade.php
+++ b/resources/views/partials/content-single.blade.php
@@ -7,7 +7,7 @@
     @php(the_content())
   </div>
   <footer>
-    {!! wp_link_pages(['echo' => 0, 'before' => '<nav class="page-nav"><p>' . __('Pages:', 'pressbooks-aldine'), 'after' => '</p></nav>']) !!}
+    {!! wp_link_pages(['echo' => 0, 'before' => '<nav class="page-nav"><p>' . __('Pages:', 'aldine'), 'after' => '</p></nav>']) !!}
   </footer>
   @php(comments_template('/partials/comments.blade.php'))
 </article>
diff --git a/resources/views/partials/entry-meta.blade.php b/resources/views/partials/entry-meta.blade.php
index a3b6f49..4a1b9a1 100644
--- a/resources/views/partials/entry-meta.blade.php
+++ b/resources/views/partials/entry-meta.blade.php
@@ -1,6 +1,6 @@
 <time class="updated" datetime="{{ get_post_time('c', true) }}">{{ get_the_date() }}</time>
 <p class="byline author vcard">
-  {{ __('By', 'pressbooks-aldine') }} <a href="{{ get_author_posts_url(get_the_author_meta('ID')) }}" rel="author" class="fn">
+  {{ __('By', 'aldine') }} <a href="{{ get_author_posts_url(get_the_author_meta('ID')) }}" rel="author" class="fn">
     {{ get_the_author() }}
   </a>
 </p>
diff --git a/resources/views/partials/header.blade.php b/resources/views/partials/header.blade.php
index 6b1bd0c..54c8f33 100644
--- a/resources/views/partials/header.blade.php
+++ b/resources/views/partials/header.blade.php
@@ -6,11 +6,11 @@
         <a class="catalog" href="{{ home_url('/catalog') }}">Catalog</a>
         <a class="contact" href="#contact">Contact</a>
         @if(!is_user_logged_in())
-          <a class="signin" href="{{ wp_login_url() }}">{{ __('Sign in', 'pressbooks-aldine') }}</a>
+          <a class="signin" href="{{ wp_login_url() }}">{{ __('Sign in', 'aldine') }}</a>
           <span class="sep">/</span>
-          <a class="signup" href="{{ network_home_url('/wp-signup.php') }}">{{ __('Sign up', 'pressbooks-aldine') }}</a>
+          <a class="signup" href="{{ network_home_url('/wp-signup.php') }}">{{ __('Sign up', 'aldine') }}</a>
         @else
-          <a class="signin" href="{{ wp_logout_url() }}">{{ __('Sign out', 'pressbooks-aldine') }}</a>
+          <a class="signin" href="{{ wp_logout_url() }}">{{ __('Sign out', 'aldine') }}</a>
         @endif
     </nav>
     <div class="branding">
diff --git a/resources/views/partials/uio.blade.php b/resources/views/partials/uio.blade.php
index c93f354..f2c1982 100644
--- a/resources/views/partials/uio.blade.php
+++ b/resources/views/partials/uio.blade.php
@@ -2,8 +2,8 @@
   <div class="flc-slidingPanel-panel flc-prefsEditor-iframe"></div>
   <div class="fl-panelBar">
     <span class="fl-prefsEditor-buttons">
-      <button id="reset" class="flc-prefsEditor-reset fl-prefsEditor-reset"><span class="fl-icon-undo"></span>{{ __('Reset', 'pressbooks-aldine') }}</button>
-      <button id="show-hide" class="flc-slidingPanel-toggleButton fl-prefsEditor-showHide">{{ __('Show/Hide', 'pressbooks-aldine') }}</button>
+      <button id="reset" class="flc-prefsEditor-reset fl-prefsEditor-reset"><span class="fl-icon-undo"></span>{{ __('Reset', 'aldine') }}</button>
+      <button id="show-hide" class="flc-slidingPanel-toggleButton fl-prefsEditor-showHide">{{ __('Show/Hide', 'aldine') }}</button>
     </span>
   </div>
 </div>
diff --git a/resources/views/search.blade.php b/resources/views/search.blade.php
index a5bb9f6..3fc6b63 100644
--- a/resources/views/search.blade.php
+++ b/resources/views/search.blade.php
@@ -5,7 +5,7 @@
 
   @if (!have_posts())
     <div class="alert alert-warning">
-      {{  __('Sorry, no results were found.', 'pressbooks-aldine') }}
+      {{  __('Sorry, no results were found.', 'aldine') }}
     </div>
     {!! get_search_form(false) !!}
   @endif
