SetStyle

Set the active styles for future vector drawing operations. Line styles, main fills and right fills can all be specified with an index to their respective style tables. Table entries begin at 1 and index 0 is used to specify an empty style. Styles remain active until set to another value or disabled with an index of zero.
Styles with a lower index have a lower display depth than those later in the table so those fills defined with an higher style index will obscure those with lower indices. All line styles will appear on top of all Fill styles defined in the same style table. In order to show a fill over a line, the fill must be defined in a later table or the shape redrawn so the overlapping boundary does not occur.