ardigital

Restore the previous WordPress classic widgets and post editor settings screens and disables the Gutenberg block editor from managing widgets or post editor.
There are cases where the our plugin will be necessary: 
* Users simply preferring the old system.
Our plugin can restore the classic widget also post edit screen with just one click. 
Turn the classic widget or post editor on or off from the settings page.

Restore Classic Widgets and Classic Post Editor

Restore the previous WordPress classic widgets and post editor settings screens and disables the Gutenberg block editor from managing widgets or post  …

Cliff Seal

Simply put: this plugin gives the Editor role access to edit “theme options”, which includes:
<ul>
<li>Appearance > Widgets</li>
<li>Appearance > Menus</li>
<li>Appearance > Customize if they are supported by the current theme</li>
<li>Appearance > Background</li>
<li>Appearance > Header</li>
</ul>
Instead of adding this capability by hand on each client site, just install and activate this plugin—it keeps your <code>functions.php</code> file clean, and keeps this type of functionality where it belongs.
The capability is added to the role once (on plugin activation) and removed when the plugin is deactivated.

Editor Theme Options

Allow editors to access theme options in the Appearance menu.

Restore Classic Widgets and Classic Post Editor vs Editor Theme Options