Magento 2 – How to extend core adminhtml less file?

by |Published June 22, 2021

I try to extend the file vendormagentomodule-page-builderviewadminhtmlwebcsssource_buttons.less to add my custom styles to it.

I tried to add it to my custom module and added my custom styles:

appcodeCompanyBaseviewadminhtmlwebcsssource_buttons.less

Then I compiled with grunt refresh but the changes are not visible.