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New major version with doNotProcessCSS = true by default
I think that process css by default is a bad idea.
I can say more, in my opinion, css processing feature should be moved from hand.js to the separate script.
The main aim of hand.js is to provide polyfill for pointer events. It's better to use small modules with particular functionality, not one combine.
But even if you think that all the stuff should be in the hand.js, it's better to set doNotProcessCSS = true by default, because nobody should use it in production to avoid additional http requests for css files.
Do you agree?)