Would be great to have on mdbIcon the possibility to put for example size="2x-lg" that would use 2x for lg+ resolutions or size="2x 4x-md 8x-lg" that would use 2x for xs and sm, 4x for md only and 8x for lg+ resolutions. I beleive this would be a very useful way for us devs to solve that matter, instead of adding custom css for those cases or even duplicate the component each one for a resolution.

Best regards