202: References for Gauge Creation

Many friends ask me where I find information about gauge building.
T210 Gauges RowS1
It’s a typical but a true answer – from the Internet.
Following is a good piece of background reading I often make reference to:

Creating XML Gauges

Truly they are not directly dealing with gauges for Saitek’s FIPs, but the basics and theories are more or less the same.