The following spec fails with a timeout but should fail with a message that explains that a promise was expected to be resolved:

  it('should fail with something other than a timeout', function() {
    var p = new Promise(function() {});
    return expectAsync(p).toBeResolved();
  });

Most of the async matchers have this problem, with the notable exception of toBePending.

The default output doesn't have much contrast and is a bit hard to read for me. That's best illustrated with a screenshot: