MapViewer Redline Color and Fill

I just created a .NET wrapper project to manage all functions of MapViewer ActiveX control.

Now I try to figure out how to manage redline colors and fills correctly. And I'm in trouble.

I would like to set color, fill color, and is filled properties. Since there is no such methods I tried to combine available functions:

• I create a new element via StartCommand(number) 
• I set new element line (ARGB!) )color by set:

• ActiveElementColor to the RGB components of the color in BGR order
• ActiveElementTransparency to the (opposite) alpha (A) compontent of the color. (opposite means: 255-color.A since this means T in TBGR)

I also wrote a method to get this values in .NET System.Drawing.Color format. It all works fine, I successfully get and set this color/transparency values.

Now I would like to create 2 more method:

1. Get/Set redline element's fill color
2. Get/Set if rendline elemets are filled

Its not so easy, since there is no properties such as ZoomAreaFillColor and ZoomAreaFilled. 

I found a property ActiveElementFillColor but there is no any documentation for that. So I don't know if it accepts TBGR or just BGR value? 

On the other side when I create new element by calling StartCommand method I couldn't set if new element is filled. And there is no any global settings for that. I found in API there is a functions to create elements programmatically. These functions accept isfilled argument like CreatePolygonElement (points, isFilled) but when I start element creation by start a command I don't know how should I set IsFilled?

ps.: Is there a GWP SDK  for v08.11.09.028? I currently use MapViewerApiReference for v08.11.07.430 but I use GWP v08.11.09.028.