function isTransformed(element) {
    var transform = getStyle(element, transformStyle);
    if (!transform || transform === transformNone$1) return false;

    var display = getStyle(element, displayStyle);
    if (display === displayInline || display === displayNone) return false;

    return true;
  }
Returns true if element is transformed, false if not. In practice the
element's display value must be anything else than "none" or "inline" as
well as have a valid transform value applied in order to be counted as a
transformed element.

Borrowed from Mezr (v0.6.1):
https://github.com/niklasramo/mezr/blob/0.6.1/mezr.js#L661

@param {HTMLElement} element
@returns {Boolean}