separation

The distance between the line symbols in the hatch pattern of a HatchFillSymbolLayer, in DIPs. The distance between the hatch lines in a HatchFillSymbolLayer. Values are passed in as DIPs, and stored internally as points. The larger the value, the more the hatch lines are separated. If no value is specified, the default, 5.3333 DIPs (4.0 in points), applies. Separation values must be non-negative.