* Fixed chip ripple.

* Fixed chip ripple. All tests passed.

* Fix one minor detail.

* Fixed reference box.

* Playing around 2.

* Added tests for chip ripple.

* Reverting print-debugging statements

* Remove extra blank line.

* Fixed chip ripple.

* Remove commented code.

* Reconciles with upstream/master.

* Remove print-debugging statement.

* Remove empty line.

* Edit comments.

* Edit style and comments.

* Edit style.

* Fix style and capitalization.

* Return bool.

* Edit style.

* Use getMaterialBox instead of Material.of(...).

* Experiment 3.

* Revert.

* Using tester.pump instead of pumpFrames

* Delete pumpFrames.

* Edit comments.