func init
	// checks installation Adobe Photoshop
	include("AdobePhotoshop")

	// initialize instance
	sys.add_object(this.codename, 'ps.IndexedConversionOptions')

	// initialize properties
	sys.set_typed_field(1, 'Colors')
	sys.set_typed_field(14, 'Dither', '', 'ps.PsDitherType')
	if(this.props("Dither").value == 'psDiffusion')
		sys.set_field('DitherAmount')
		blk_init.println(this.codename, '.PreserveExactColors = ',  sys.get_typed_field('false', 'PreserveExactColors', 104), ';')
	end
	sys.set_typed_field(14, 'Forced', '', 'ps.PsForcedColors')
	sys.set_typed_field(14, 'Matte', '', 'ps.PsMatteType')
	sys.set_typed_field(14, 'Palette', '', 'ps.PsPaletteType')
	sys.set_typed_field(104, 'Transparency')

	// make methods for properties
	sys._prop_init('Colors', 0, 1, 1)
	sys._prop_init('Dither', 0, 1, 0)
	sys._prop_init('DitherAmount', 0, 1, 1)
	sys._prop_init('Forced', 0, 1, 0)
	sys._prop_init('Matte', 0, 1, 0)
	sys._prop_init('Palette', 0, 1, 0)
	sys._prop_init('PreserveExactColors', 0, 1, 104)
	sys._prop_init('Transparency', 0, 1, 104)
end

func ConversionOptions
	return(this.codename)
end