plotly
diff --git a/Diff for: ‎src/FSharp.Plotly/CandelstickExtension.fs
+6-3 b/Diff for: ‎src/FSharp.Plotly/CandelstickExtension.fs
+6-3
@@ -2,6 +2,7 @@
 
 open Trace
 open System
+open System.Runtime.InteropServices
 
 type Candle = 
     {
@@ -28,6 +29,7 @@ module CandelstickExtension =
 
 
     type TraceStyle with
+        [<CompiledName("Candlestick")>]
         static member Candlestick
             (
                 data            : (#IConvertible*Candle) seq,
@@ -50,12 +52,13 @@ module CandelstickExtension =
             )
 
     type Chart with
+        [<CompiledName("Candelstick")>]
         static member Candelstick
             (
                 data            : (#IConvertible*Candle) seq,
-                ?increasing     : Line,
-                ?decreasing     : Line,
-                ?line           : Line
+                [<Optional;DefaultParameterValue(null)>] ?increasing     : Line,
+                [<Optional;DefaultParameterValue(null)>] ?decreasing     : Line,
+                [<Optional;DefaultParameterValue(null)>] ?line           : Line
             ) =
             Trace.initCandelstick(TraceStyle.Candlestick
                 (
Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`
`3`	`3`	`open Trace`
`4`	`4`	`open System`
	`5`	`+open System.Runtime.InteropServices`
`5`	`6`
`6`	`7`	`type Candle =`
`7`	`8`	`{`
`@@ -28,6 +29,7 @@ module CandelstickExtension =`
`28`	`29`
`29`	`30`
`30`	`31`	`type TraceStyle with`
	`32`	`+ [<CompiledName("Candlestick")>]`
`31`	`33`	`static member Candlestick`
`32`	`34`	`(`
`33`	`35`	`data : (#IConvertible*Candle) seq,`
`@@ -50,12 +52,13 @@ module CandelstickExtension =`
`50`	`52`	`)`
`51`	`53`
`52`	`54`	`type Chart with`
	`55`	`+ [<CompiledName("Candelstick")>]`
`53`	`56`	`static member Candelstick`
`54`	`57`	`(`
`55`	`58`	`data : (#IConvertible*Candle) seq,`
`56`		`- ?increasing : Line,`
`57`		`- ?decreasing : Line,`
`58`		`- ?line : Line`
	`59`	`+ [<Optional;DefaultParameterValue(null)>] ?increasing : Line,`
	`60`	`+ [<Optional;DefaultParameterValue(null)>] ?decreasing : Line,`
	`61`	`+ [<Optional;DefaultParameterValue(null)>] ?line : Line`
`59`	`62`	`) =`
`60`	`63`	`Trace.initCandelstick(TraceStyle.Candlestick`
`61`	`64`	`(`