Given the following primary ruleset saved as phpcs.xml.dist:

<?xml version="1.0"?> <ruleset name="Test"> <file>.</file> <arg name="colors"/> <rule ref="PSR12"/> </ruleset>

... and this secondary ruleset saved as phpcs.xml:

<?xml version="1.0"?> <ruleset name="Test"> <rule ref="phpcs.xml.dist"/> <arg name="no-colors"/> </ruleset>

The no-colors setting has no effect.

Overruling the setting from the command-line using phpcs --no-colors does work.