In fact, it would be better to call it in an eval so if it's not installed, it doesn't break anything: BEGIN { eval 'use warnings::colored' };.
Better yet, invoke it using an environment variable: PERL5OPT="-M5;BEGIN{eval{require warnings::colored)}}" as mentioned here: Re: Is it possible load optional modules from PERL5OPT?.

In reply to Re^3: Color die and warn messages by Anonymous Monk
in thread Color die and warn messages by Anonymous Monk

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