UserStyleLevel

The style sheet is an user style sheet, its contents always override other style sheets. This is the default.

The style sheet will be treated as if it was provided by the loaded documents. That means other user style sheets may still override it.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.