ref: c9c59dc34323a5e0b1886db5f845c8d41620826e
parent: 91dc3c9f9c8fd529bb6e8307b58b96efa0bec67e
author: Rangi <remy.oukaour+rangi42@gmail.com>
date: Fri Jul 3 08:44:47 EDT 2020
Reorganize constants/ To do: add comments associating constants with data and code