ConstReadonlyDouble: "double"A double underline.
ReadonlyDoubleAccounting: "doubleAccounting"A double underline used in accounting contexts (typically thicker and below the descenders).
ReadonlyNone: "none"No underline.
ReadonlySingle: "single"A single underline.
ReadonlySingleAccounting: "singleAccounting"A single underline used in accounting contexts (typically below the descenders).
Specifies the style of underline applied to text.