Aki Hamano

<p>RichText Extension adds useful decorating features to gutenberg rich text editor.</p>
<h4>Highlighter</h4>
<p>Draw a marker on the inline text.<br />
You can set the color, thickness, and opacity of the marker to you can create various marker styles.<br />
Up to four types of settings can be made.</p>
<h4>Font size</h4>
<p>Change inline text size.<br />
The size is specified as a percentage of the base font size, and up to four types of settings can be made.</p>
<h4>Underline</h4>
<p>Create underline.<br />
<strong>Note: The underline specifications have changed from version 2.0.0. Try clearing the format if existing underlines do not work.</strong></p>
<h4>Clear format</h4>
<p>Removes all formatting.</p>


RichText Extension

This is by far the best approach I've seen so far on really adding something usable to the WP Gutenberg Block Editor

well done ...

Adds useful decoration features to the Gutenberg RichText editor toolbar.

Elio Rivero

<p>This plugin will enable the TinyMCE rich text editor for the title field<br />
when writing a page or post. Requires jQuery to work, but rather than<br />
including it with , the plugin will enqueue the jQuery library<br />
included with WordPress using wp_enqueue_script on the admin area.</p>
<p>There are a couple of style to remove the margin between the title<br />
label and the TinyMCE editor area, and the padding around the title<br />
box and the border.</p>
<p>Beware, for this plugin will paragraphise all your titles, so what<br />
once was a h3 headline in your styles now might be h3 p.</p>
<p>This software is provided without warranty of any kind.</p>


ILC Rich Title

Enables TinyMCE for the title when writing a post or page.

RichText Extension vs ILC Rich Title