delwinv

A very tiny plugin that adds the ACF field key, field name, Flexible Content field name and Flexible Content layout name to the WYSIWYG 
editor body tag, allowing you to target these classes, along with the existing post-type-* classes added by default by WordPress, in 
your editor-style.css for a better admin/editor experience.
This works for both ACF and ACF Pro, version 5.
<h3>Usage</h3>
<ol>
<li>Install the plugin through the Install Plugins interface or by uploading the <code>acf-plugin-wysiwyg-styling</code> folder to your <code>/wp-content/plugins/</code> directory.</li>
<li>Activate the ACF WYSIWYG Styling plugin from the Admin > Plugins menu.</li>
<li>Create or edit your editor-style.css in your theme directory and use the newly added classes to style your WYSIWYG editors.</li>
</ol>
For example:
<ul>
<li>
The ACF WYSIWYG field with key field_9999ffff11112222 can be targeted with the following CSS:
body.acf-field-key-field_9999ffff11112222 { 
 background-color: red; 
}
</li>
<li>
The ACF WYSIWYG field with key field_9999ffff11112222 in the “room” post type can be targeted with the following CSS:
body.post-type-room.acf-field-key-field_9999ffff11112222 { 
 background-color: blue; 
}
</li>
<li>
All ACF WYSIWYG fields named “my_wysiwyg” can be targetted with the following CSS:
body.acf-field-name-my_wysiwyg { 
 background-color: yellow; 
}
</li>
<li>
All ACF WYSIWYG fields in the Flexible Content field named “page_content” can be targetted with the following CSS:
body.acf-flex-name-page_content { 
 color: green; 
}
</li>
<li>
All ACF WYSIWYG fields in the Flexible Content layout field named “test_layout” can be targetted with the following CSS:
body.acf-layout-test_layout { 
 font-family: “Computer Modern Serif”; 
}
</li>
<li>
The ACF WYSIWYG field named “my_wysiwyg” in the Flexible Content layout field named “test_layout” can be targetted with the following CSS:
body.acf-layout-test_layout.acf-field-name-my_wysiwyg { 
 border: 4px solid red; 
 height: 100%; 
 margin: 0 auto; 
 max-width: 100px; 
}
</li>
</ul>
N.B. I target using the body tag so that a user cannot accidentally target the admin CSS in their edit of the field (regardless of how unlikely 
that would be).

ACF WYSIWYG Styling

Provides the necessary CSS classes in ACF WYSYWIG editor to allow for complete styling of the admin interface.

mentholinc

Neurogenesis Styler extends the native Gutenberg blocks with advanced design controls – it does not add new blocks.
This means your site stays incredibly lightweight, fast, and future-proof, while you gain professional-grade styling options directly inside the block editor.
With Neurogenesis Styler, you design using the blocks you already know – headings, paragraphs, groups, columns, images, and more – but with a far richer set of visual tools. No custom blocks, no theme lock-in, no clutter.
Take full creative control with advanced styling features:
Full Typography Control for Pixel-Perfect Readability: Stop fighting with your theme. Gain options for custom fonts, weights, sizes, line heights, letter spacing, and text shadows—all instantly responsive across devices.
Backgrounds That Bring Designs to Life 
  Enhance any block with colors, gradients, or images. Layer them together for modern, brand-consistent backgrounds and stunning visual depth.
Borders with Style and Precision 
  Add borders and radius controls to native blocks. Define width, style, and color globally or per side with precision.
Pixel-Perfect Spacing Controls (Margins & Padding) 
  Banish custom CSS! Effortlessly fine-tune outer margins and inner padding directly in the sidebar for any block across desktop, tablet, and mobile views.
Visual Effects That Add Depth 
  Use shadows, transitions, opacity, and z-index layering for polished, interactive layouts that truly stand out.
Flexible Block Sizing 
  Control width, height, min/max constraints, and responsive sizing on native blocks for total layout mastery.
Responsive Design Made Simple 
  Style blocks differently for desktop, tablet, and mobile – built-in, no extra frameworks required.
Interactive Hover States 
  Add life to your designs by applying dynamic hover styles (colors, borders, shadows, and backgrounds) to any block, creating truly engaging user experiences.
Template Editing for Consistency 
  Apply the same styling power to templates and template parts for cohesive, site-wide design—perfect for Full Site Editing (FSE) themes.
With Neurogenesis Styler, Gutenberg finally feels complete – empowering you to design modern, responsive websites directly in the editor without adding a single new block.
<h3>Roadmap and Future Plans</h3>
We are committed to making Neurogenesis Styler the best tool for styling native Gutenberg blocks. Here is what we’re actively working on for upcoming releases:
View generated CSS by section, so you can inspect easy all the properties.
Background Blend Modes: Giving designers even more creative control over layered background images and colors.
Custom Font Provider Integration: Expanding support for popular custom font services.
<h3>Source Code</h3>
This plugin uses JavaScript and SCSS, which are compiled into the production-ready files in the /assets/dist/ directory.
The original, human-readable source code is included in the /assets/js directory. 
The build configuration for this plugin is included in <code>package.json.txt</code>. Rename it to package.json before <code>npm install</code>. Developers can review, modify, or extend the code from there.
<h3>Build Instructions</h3>
<ol>
<li>Make sure you have Node.js and npm installed.</li>
<li>
From the plugin root, install dependencies:
npm install
</li>
<li>
To build the production assets:
npm run build
</li>
<li>
For development with automatic rebuilds on file changes:
npm run start
</li>
</ol>

Neurogenesis Styler – Advanced Block Styler

Add advanced typography, spacing (margin/padding), backgrounds, borders, and responsive controls to native Gutenberg blocks.

ACF WYSIWYG Styling vs Neurogenesis Styler – Advanced Block Styler