Specifies a value for a hint variable.

Hint Variables allow the user to pass settings to the internals of Weathermap that wouldn't normally need to be changed, or that aren't part of the core Weathermap application. Examples are: small rendering changes, parameters for datasources plugins and similar.

Hint Variables are either Global for the map, or assigned to a specific link or node.

There is more about Hint Variables in the Advanced Topics section.