Simivar

Adds a sidebar widget to display Twitter updates (using the Javascript). You can set number of messages, color and other features.
You can change colors of shell background and shell text; tweet background, tweet text and tweet link. You can set on/off a features like scrollbar, show hashtags, poll for new results, show timestamps/avatars and the behavior.

Advanced Twitter Profile Widget

Adds a sidebar widget to display Twitter updates (using the Javascript). You can set number of messages, color and other features.

WordPress.org

iseulde

This plugin adds the following functionality:
<ul>
<li>Code <code>code</code>, subscript <code>sub</code>, and superscript <code>sup</code> buttons to the formatting toolbar.</li>
<li>Inline text and background colour panel (found inside the block sidebar for now).</li>
<li>Remove formatting button (found inside the block sidebar for now).</li>
</ul>

Advanced Rich Text Tools for Gutenberg

Great plugin.  Now I just need to find a quick way to change the font style

Thank you so much!

No more need to use the HTML view to insert Code. Thanks a lot. Exactly what I was looking for. It just works!

A real work relief

Additional tools for rich text fields in Gutenberg.

Advanced Twitter Profile Widget vs Advanced Rich Text Tools for Gutenberg