<?php

$files= scandir(__DIR__);
$cla = [];
$spef = [];

foreach($files as $fn){
	if(strpos($fn,'Brush')){
		$co = file_get_contents(__DIR__.'/'.$fn);
		$mat = [];
		if(preg_match_all("/css: '(.*?)'/",$co,$mat)){
			foreach($mat[1] as $sig){
				$class_name = trim($sig);
				//echo "$class_name\n";
				if(!in_array($class_name,$cla)){
					array_push($cla,$class_name);
					array_push($spef,$fn);
				}
			}
		}
	}
}

print_r($cla);