Use the CopyFrom method to duplicate the style properties of the specified Style into the instance of the Style class that this method is called from.
When a style is registered using RegisterStyle, and then copied using Style.CopyFrom(Style), only the CssClass property is copied to the destination, not all the individual properties. This could lead to unexpected results if you then copy or examine the properties of the destination style. For example, if you are using FontInfo.CopyFrom(FontInfo) to copy font information from the Font property of a Style that is registered, you will not get the individual settings of the font from the style.
All properties, including those that have been set in the current instance of the Style class, will be replaced by the associated property in the Style specified by the s parameter.