What is the best way to make a working copy of the current version of Vector that can then be adjusted?
I've enjoyed using DarkVector and wanted to try something similar (a skin based on Vector with cosmetic adjustments), but when I duplicate the current 1.37 Vector and change out the skin name in the code and file names, it produces internal errors like this:
Class 'AltVector\SkinVersionLookup' not found. Backtrace: from /var/www/my.wiki/public_html/mediawiki-1.37.2/skins/AltVector/includes/ServiceWiring.php(55) ...
Thanks for any thoughts/suggestions!