id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11532	Create editor#addContentsCss() method	Marek Lewandowski		"We should create more convenient way to add custom css files. Now we accept as editor.config.contentsCss string or array of strings which is ok, but if we want to attach to it extra css styles in plugins, we have to do some extra checking. Such code is redundant.

Method should be editor member, so we will end up with `editor.addContentsCss()`. Method itself should be injected from `wysiwygarea` plugin, since contentsCss works only for classic editor.

Method should allow to accept as its parameter both string and array of stylesheet paths."	New Feature	new	Normal		General