Adobe Commerce 2.3 reached end of support in September 2022.

Create symlinks to LESS files

In addition to the command arguments described in this topic, see Common arguments.

Run all Magento CLI commands as the file system owner.

Create LESS files

Use this command to create symlinks to LESS files.

Command options:

bin/magento dev:source-theme:deploy [--type="..."] [--locale="..."] [--area="..."] [--theme="..."] [file1] ... [fileN]

During development, this command creates symlinks for LESS files in the var/view_preprocessed and pub/static folders. This process does not compile LESS files into CSS files.

The following table explains this command’s parameters and values.

Parameter Value Required?


Type of source files: [less] (default: "less")

Currently, LESS is the only file type supported.



Locale code.

To display the list of locale codes, enter bin/magento info:language:list



Area (adminhtml for the administrative area, frontend for the storefront).



Theme name in <VendorName>/<theme name> format. For example, Magento/blank or Magento/backend.



Space-separated list of CSS files to convert to LESS without the .css extension. (Default is css/styles-m css/styles-l, for adminhtml type css/styles css/styles-old)


For example, to create LESS files for the frontend theme named VendorName/themeName in the en_US locale using a CSS file named <magento_root>/pub/static/frontend/VendorName/themeName/en_US/css/styles-l.css, enter the following command:

bin/magento dev:source-theme:deploy --type="less" --locale="en_US" --area="frontend" --theme="VendorName/themeName" css/styles-l

The following messages display to confirm success:

Processed Area: frontend, Locale: en_US, Theme: VendorName/themeName, File type: less.
-> css/styles-l.less
Successfully processed.

To create LESS files for the adminhtml, enter the following command:

bin/magento dev:source-theme:deploy --locale="en_US" --area="adminhtml" --theme="Magento/backend" css/styles css/styles-old