ref: 3e85a5601786c3fee1e1f959f510ab8224ad025e
parent: 8a704263033e3242ba74ecb0356987f5e642cc1e
author: Sigrid Haflínudóttir <ftrvxmtrx@gmail.com>
date: Tue Apr 7 15:27:48 EDT 2020
reduce flickering by showing as many windows as possible first, then hiding the rest