SignPostStyle
constructor(maxWidth: Int, maxHeight: Int, maxFontHeight: Int = 11, minFontHeight: Int = 7, validSignBgAlpha: Int = 216, validSignFgAlpha: Int = 255, nonValidSignBgAlpha: Int = 192, nonValidSignFgAlpha: Int = 255, maxNbTextLines: Int = 4, maxSignWidth: Int = 65535, validSignFrameClr: Int = 0xFF9DE31C.toInt(), nonValidSignContrast: Double = 0.6)