diff --git a/src/wp-admin/css/common.css b/src/wp-admin/css/common.css
index 0a3f9f8ba9a2b..bbdc3821b635c 100644
--- a/src/wp-admin/css/common.css
+++ b/src/wp-admin/css/common.css
@@ -155,8 +155,8 @@
 	font-weight: 600;
 	padding: 15px 23px 14px;
 	/* Background and color set to prevent false positives in automated accessibility tests. */
-	background: #f0f0f1;
-	color: #2271b1;
+	background: #ffffff;
+	color: var(--wp-admin-theme-color, #3858e9);
 	z-index: 100000;
 	line-height: normal;
 }
@@ -164,8 +164,8 @@
 .screen-reader-shortcut:focus {
 	top: -25px;
 	/* Overrides a:focus in the admin. See ticket #56789. */
-	color: #2271b1;
-	box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
+	color: var(--wp-admin-theme-color, #3858e9);
+	box-shadow: 0 0 0 var(--wp-admin-border-width-focus, 1.5px) var(--wp-admin-theme-color, #3858e9);
 	text-decoration: none;
 	/* Only visible in Windows High Contrast mode */
 	outline: 2px solid transparent;
@@ -1894,8 +1894,8 @@ p.auto-update-status {
 }
 
 #screen-meta-links .show-settings:focus {
-	border-color: #2271b1;
-	box-shadow: 0 0 0 1px #2271b1;
+	border-color: var(--wp-admin-theme-color, #3858e9);
+	box-shadow: 0 0 0 var(--wp-admin-border-width-focus, 1.5px) var(--wp-admin-theme-color, #3858e9);
 	/* Only visible in Windows High Contrast mode */
 	outline: 2px solid transparent;
 }
@@ -3445,7 +3445,7 @@ img {
 	/* Reset default focus style. */
 	box-shadow: none;
 	/* Use an inset outline instead, so it's visible also over the current file item. */
-	outline: 2px solid #2271b1;
+	outline: 2px solid var(--wp-admin-theme-color, #3858e9);
 	outline-offset: -2px;
 }
 
diff --git a/src/wp-admin/css/nav-menus.css b/src/wp-admin/css/nav-menus.css
index b5d96cd7477d5..472abb10617bf 100644
--- a/src/wp-admin/css/nav-menus.css
+++ b/src/wp-admin/css/nav-menus.css
@@ -221,7 +221,6 @@ input.bulk-select-switcher:focus + .bulk-select-button-label {
 
 .menu-settings-group {
 	margin: 0 0 10px;
-	overflow: hidden;
 	padding-left: 20%;
 }
 
diff --git a/src/wp-admin/css/widgets.css b/src/wp-admin/css/widgets.css
index e4777451b42f9..99039d3c7c66a 100644
--- a/src/wp-admin/css/widgets.css
+++ b/src/wp-admin/css/widgets.css
@@ -582,6 +582,12 @@ div#widgets-right .closed .widgets-sortables {
 	padding: 0 15px;
 }
 
+.widget-control-actions {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+}
+
 .editwidget .widget-control-actions {
 	margin-top: 20px;
 }
@@ -724,7 +730,7 @@ div#widgets-right .widget-top:hover,
 }
 
 .widgets-chooser .widgets-chooser-selected .widgets-chooser-button {
-	background: #2271b1;
+	background: var(--wp-admin-theme-color, #3858e9);
 	color: #fff;
 }
 
diff --git a/src/wp-admin/includes/widgets.php b/src/wp-admin/includes/widgets.php
index d4a370a1a37f5..e751602866b0d 100644
--- a/src/wp-admin/includes/widgets.php
+++ b/src/wp-admin/includes/widgets.php
@@ -303,7 +303,6 @@ function wp_widget_control( $sidebar_args ) {
 			<?php submit_button( __( 'Save' ), 'primary widget-control-save right', 'savewidget', false, array( 'id' => 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?>
 			<span class="spinner"></span>
 		</div>
-		<br class="clear" />
 	</div>
 	<?php echo $after_form; ?>
 	</div>
diff --git a/src/wp-admin/widgets-form.php b/src/wp-admin/widgets-form.php
index 0f841d90434d6..85ace96796555 100644
--- a/src/wp-admin/widgets-form.php
+++ b/src/wp-admin/widgets-form.php
@@ -343,7 +343,7 @@
 	</div>
 
 	<div class="widget-control-actions">
-		<div class="alignleft">
+		<div class="left-actions">
 			<?php if ( ! isset( $_GET['addnew'] ) ) : ?>
 				<input type="submit" name="removewidget" id="removewidget" class="button-link button-link-delete widget-control-remove" value="<?php esc_attr_e( 'Delete' ); ?>" />
 				<span class="widget-control-close-wrapper">
@@ -353,14 +353,13 @@
 				<a href="widgets.php" class="button-link widget-control-close"><?php _e( 'Cancel' ); ?></a>
 			<?php endif; ?>
 		</div>
-		<div class="alignright">
+		<div class="right-actions">
 			<?php submit_button( __( 'Save Widget' ), 'primary alignright', 'savewidget', false ); ?>
 			<input type="hidden" name="widget-id" class="widget-id" value="<?php echo esc_attr( $widget_id ); ?>" />
 			<input type="hidden" name="id_base" class="id_base" value="<?php echo esc_attr( $id_base ); ?>" />
 			<input type="hidden" name="multi_number" class="multi_number" value="<?php echo esc_attr( $multi_number ); ?>" />
 			<?php wp_nonce_field( "save-delete-widget-$widget_id" ); ?>
 		</div>
-		<br class="clear" />
 	</div>
 
 	</form>
diff --git a/src/wp-includes/css/customize-preview.css b/src/wp-includes/css/customize-preview.css
index 6bdf302672f25..ec9fd946d0a64 100644
--- a/src/wp-includes/css/customize-preview.css
+++ b/src/wp-includes/css/customize-preview.css
@@ -44,7 +44,7 @@
 	line-height: 1 !important;
 	font-size: 18px;
 	z-index: 5;
-	background: #3582c4 !important;
+	background: #3858e9;
 	border-radius: 50%;
 	border: 2px solid #fff;
 	box-shadow: 0 2px 1px rgba(60, 67, 74, 0.15);
@@ -76,11 +76,11 @@
 }
 
 .customize-partial-edit-shortcut button:hover {
-	background: #4f94d4 !important; /* matches primary buttons */
+	background: #2145e6 !important; /* matches primary buttons */
 }
 
 .customize-partial-edit-shortcut button:focus {
-	box-shadow: 0 0 0 2px #4f94d4;
+	box-shadow: 0 0 0 1.5px #3858e9;
 }
 
 body.customize-partial-edit-shortcuts-shown .customize-partial-edit-shortcut button {