UIScheme
Defines the name of a ColorScheme to be used.
=> If this parameter is missing or empty a ColorSet (see doc of parameter ColorSet) is searched and applied if found. This behavior may change in later versions!

=> If this paramter is set, the ColorScheme is to be located in folder \Settings\. Even if this set doesn't exist or is incomplete the new behavior will be applied with default colors.
Possible values:
Default value: