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manifest / editor / block-editor-custom-alignments

Block Editor Custom Alignments #9 in Blocks & Editor

Allows developers to add custom alignments to `theme.json` for use in the WordPress block editor.

by Modern Tribe · github.com/moderntribe/block-editor-custom-alignments · website

4stars
11krelease downloads
≈180active sites
0forks

Install

The author publishes release zips, so WP-CLI can install straight from GitHub:

wp plugin install https://github.com/moderntribe/block-editor-custom-alignments/releases/download/v1.1.3/block-editor-custom-alignments.1.1.3.zip

Readme

Block Editor Custom Alignments

Allows developers to add custom alignments to theme.json for use in the block editor.

Usage

The plugin runs off of an _experimentalLayout attribute in theme.json that allows a developer to define extra alignments (widths) for blocks that support alignment. If a block doesn't support alignment, this feature will not display. All values within the _experimentalLayout array's objects are required. Excluding this array from your theme.json file will disable most features of the plugin.

"_experimentalLayout": [
  {
    "name": "Narrow",
    "slug": "narrow",
    "icon": "M5 9v6h14V9H5zm11-4.8H8v1.5h8V4.2zM8 19.8h8v-1.5H8v1.5z",
    "width": "400px",
    "textdomain": "tribe"
  },
  {
    "name": "Extra Wide",
    "slug": "extrawide",
    "icon": "M5 9v6h14V9H5zm11-4.8H8v1.5h8V4.2zM8 19.8h8v-1.5H8v1.5z",
    "width": "1300px",
    "textdomain": "tribe"
  }
],

You are still able to define contentSize and wideSize within the layout attribute as normal, and they will populate in the new control created by the plugin. You can find the documentation for layout from core here.

"layout": {
  "contentSize": "652px",
  "wideSize": "883px"
},

Includes Array

The plugin also offers support for only include specific blocks from having custom alignment support via the _experimentalLayoutInclude array within theme.json.

"_experimentalLayoutInclude": [
  "core/group",
  "core/columns"
],

Excludes Array

The plugin also offers support for excluding specific blocks from having custom alignment support via the _experimentalLayoutExclude array within theme.json.

"_experimentalLayoutExclude": [
  "core/group",
  "core/columns"
],

Sorting Flag

The plugin offers a way to turn on a sorting feature. If the _experimentalLayoutSorting attribute is added to theme.json and set to true, the plugin will sort the final alignment controls array by the widths provided. With controls that do not have a defined width, appearing at the bottom of the list.

"_experimentalLayoutSorting": true,

Local Development

Since this is a small plugin, local development uses mostly Wordpress default build scripts via wp-scripts, with some overrides.

To get started:

  1. Clone the plugin / download the repo ZIP into your plugins folder within Wordpress.
  2. cd block-editor-custom-alignments
  3. composer install
  4. nvm use
  5. npm install
  6. npm run dev or npm run dist

The plugin also offers scripts for linting and formatting:

  • npm run lint will run formatting and linting on all PCSS & JS files.
  • npm run format will run wp-scripts format on all PCSS & JS files.
  • Linting is also available per language via their own respective commands:
    • npm run lint:css will return linting errors in your PCSS files.
    • npm run lint:css:fix will fix linting errors in your PCSS files.
    • npm run lint:js will return linting errors in your JS files.
    • npm run lint:js:fix will fix linting errors in your JS files.

Modern Tribe

Modern Tribe

Read the full README on GitHub →

Releases

TagPublishedAssetDownloads
v1.1.3 Apr 9, 2026 block-editor-custom-alignments.1.1.3.zip 130
v1.1.1 Jul 16, 2025 block-editor-custom-alignments.1.1.1.zip 717
v1.1.0 Jul 15, 2025 block-editor-custom-alignments.1.1.0.zip 3
v1.0.9 Jul 15, 2025 block-editor-custom-alignments.1.0.8.zip 2
v1.0.8 Aug 7, 2024 block-editor-custom-alignments.1.0.8.zip 4,802
v1.0.7 May 2, 2024 block-editor-custom-alignments.1.0.7.zip 180
v1.0.6 Jul 19, 2023 block-editor-custom-alignments.1.0.6.zip 4,164
v1.0.5 Jun 6, 2023 block-editor-custom-alignments.1.0.5.zip 717
v1.0.4 Jun 1, 2023 block-editor-custom-alignments.1.0.4.zip 27
v1.0.3 May 16, 2023 block-editor-custom-alignments.1.0.3.zip 57
v1.0.2 May 11, 2023 block-editor-custom-alignments.1.0.2.zip 26
v1.0.1 May 9, 2023 block-editor-custom-alignments.1.0.0.zip 13
v1.0.0 May 3, 2023 block-editor-custom-alignments.1.0.0.zip 3

Active-site estimate ≈180 comes from the median of recent superseded releases. Method.