Canadian pale

In vexillology a Canadian pale is the centre of a tricolour that is a square covering half the width of the flag rather than a rectangle covering a third. It is named after the Canadian flag, which is the most prominent flag to have such a feature. No other national flag has a Canadian pale, but a number of sub-national and municipal flags use it, especially in Canada. For instance the cities of Cornwall, Ontario and Burlington, Ontario and the Canadian Northwest Territories all feature a Canadian pale on their flags.