Represents a rule of a theme. Its purpose is to create an actual NRule instance. A theme rule, derives from NThemeDeclaration to allow you to map properties to values, that are directly outputed in the NRule declartion. Each theme rule is associated with a specific selector, which is internally created for the rule, when you obtain it from the one of the NTheme GetRule methods.

'Declaration
 
Public Class NThemeRule 
   Inherits NThemeStyle

'Usage
 
Dim instance As NThemeRule

public class NThemeRule : NThemeStyle