Compile Errors when converting NT7 to NT 8

[Trader_Mark]

Converting a custom indicator from NT 7 to NT 8 and getting a compile error "System.Windows.Media.Color" does not contain a definition for "Empty", error C0117, on this and similar lines including Color.Red Color.Blue etc.:

Draw.Text("PossLow", true, "--", 0, lowMarker, 2, LowBar, new NinjaTrader.Gui.Tools.SimpleFont("Impact", 16), TextAlignment.Center, Color.Empty, Color.Empty, 10);

Also getting, The type or namespace name "Design" does not exist in the namespace "NinjaTrader.Gui, error CS0234 in these lines:

get { return Gui.Design.SerializableColor.ToString(colorNeutral); }
set { colorNeutral = Gui.Design.SerializableColor.FromString(value); }

I have searched code breaking changes and the Microsoft links on the errors but there is no clear indication of how to fix it.

Any tips appreciated.

[NinjaTrader_ChelseaB]

Hello Trader_Mark,

NinjaTrader 8 uses brushes instead of colors.

Draw.Text(NinjaScriptBase owner, string tag, bool isAutoScale, string text, int barsAgo, double y, int yPixelOffset, Brush textBrush, SimpleFont font, TextAlignment alignment, Brush outlineBrush, Brush areaBrush, int areaOpacity)

http://ninjatrader.com/support/helpGuides/nt8/en-us/draw_text.htm

Use Brushes.Transparent in place of Color.Empty.


Also regarding serializing a brush, see this Tips article with an example.

http://ninjatrader.com/support/forum/showthread.php?t=4977