lastsplash (a11n)

When WordPress introduced Full Site Editing (FSE) with block themes, the familiar “Additional CSS” option was moved from the Customizer to the Site Editor’s Styles panel. This plugin brings back easy access by adding an “Additional CSS” link directly to the Appearance menu.
Features:
<ul>
<li>Adds “Additional CSS” link under Appearance menu</li>
<li>One-click access to the Site Editor CSS panel</li>
<li>Only appears when using a block theme</li>
<li>Lightweight and simple – no settings needed</li>
<li>Works with any block theme</li>
</ul>
How It Works:
Simply activate the plugin and you’ll see “Additional CSS” appear in your Appearance menu. Clicking it takes you directly to the CSS editing panel in the Site Editor.

Additional CSS Shortcut

Adds a quick-access link to the Additional CSS panel in the Site Editor for block themes.

dessky

Dessky Custom CSS is the lightweight plugin that allows you to add custom CSS that overrides Plugins and Theme’s default styles. This plugin is built to allow admins to add their own CSS to their WordPress website without editing theme or plugin files. Plugin is specially designed not to drain any resources from your website and to be as simple as possible.
This plugin was developed by <a href="https://dessky.com/" rel="nofollow ugc">Dessky Team</a>.
Dessky Team does not provide support for the Dessky Custom CSS on the WordPress.org forums. In order to get support or make a suggestion from a Dessky Team you will have to Join Our Open Community and <a href="https://discuss.dessky.org/t/dessky-custom-css" rel="nofollow ugc">Start a Discussion</a>.
<a href="https://discuss.dessky.org/t/dessky-custom-css" rel="nofollow ugc">DISCUSS WITH THE DESSKY TEAM</a>
<a href="https://discuss.dessky.org/t/dessky-custom-css" rel="nofollow ugc">JOIN OUR OPEN COMMUNITY</a>: The purpose of this open community is to have a collective place where the community can help each other, and we can get some feedback to improve Dessky Custom CSS as well. Joining the community is also a great way to connect with like-minded people and share your experience.
You can also <a href="https://dessky.me/" rel="nofollow ugc">GET THE PREMIUM SUPPORT</a>
<a href="https://dessky.org/" rel="nofollow ugc">User Documentation</a>: Although Dessky Custom CSS is already easy to set up, we’ve put together tutorials, guides, and some knowledge bases to help you set up and get started with it.
I have further questions, how do I contact you?
Please fill up the <a href="https://dessky.com/contact/" rel="nofollow ugc">contact form</a> and we would be more than happy to assist.
<h4>Features</h4>
<ul>
<li>Lightweight and without any impact on site performance</li>
<li>Simple interface built on WordPress UI</li>
<li>Useful Code Syntax Highlighter</li>
<li>No configuration needed</li>
<li>No complicated database queries</li>
<li>Allows Administrator access on Multisite</li>
</ul>
<h4>Credits</h4>
Dessky Custom CSS is based on the ‘Simple Custom CSS’ plugin developed by <a href="https://profiles.wordpress.org/johnregan3/" rel="nofollow ugc">John Regan</a> and <a href="https://profiles.wordpress.org/dvankooten/" rel="nofollow ugc">Danny van Kooten</a>.
<a href="https://codemirror.net/" rel="nofollow ugc">CodeMirror</a> is an open-source project shared under the <a href="https://codemirror.net/LICENSE" rel="nofollow ugc">MIT license</a>.

Dessky Custom CSS

Lightweight plugin for adding Custom CSS to your WordPress site.

Additional CSS Shortcut vs Dessky Custom CSS