Changing the Color Inside a Shape

Chandru,
What you created is not an actual single shape, but just four separate objects. You can format each of them, but not an area between them, as that area is not an object. Even if you group the four lines to be treated as one entity, what is between them is not part of any object. Hence, you have to create another object that is positioned exactly to match position of your lines, then fill that object with the colour of your choice. You may want to move that object behind the lines so that they are fully visible.
In short, it is easier to use one of many available shapes, in your case a rectangle, then format the outline and inside of that shape.
The only situation I can imagine that four lines would be useful is if you want each side of the shape to have different colour or other attributes (thickness, line-type, etc.). In such case I suggest creating the shape (rectangle) first, then creating the lines to match. That way the lines will be in front of the shape and fully visible.

Chandru

You will already have the values for each line Top-Left, Top-Right etc. You can use the FreeForm shape in the Lines section, 2nd from right.

I recorded this macro to insert a triangle, drawn by clicking on each end point.

Sub FreeForm()
'
With ActiveSheet.Shapes.BuildFreeform(msoEditingAuto, 95.25, 135.75)
.AddNodes msoSegmentLine, msoEditingAuto, 96, 210
.AddNodes msoSegmentLine, msoEditingAuto, 192, 210.75
.AddNodes msoSegmentLine, msoEditingAuto, 95.25, 135.75
.ConvertToShape.Select
End With
End Sub

(see Figure 1 below)

It starts with size on screen and adds nodes for each end point and the last node equals the startpoint. If your shape is part of a chart then, I imagine, the nodes are the x,y co-ordinates on the chart.

Good luck with that ;-)

@rudolf
If your active sheet has an ActiveX control named CB_Dropdown1, this will change its BackColor to yellow:
ActiveSheet.CB_Dropdown1.BackColor = RGB(255, 255, 0)

Hello,

when I select one of my dropdown shapes, I then find mostly all options greyed out on the Format ribbon tab and I'm not able to change the background color or else.
Is there an option to enable/disable this somewhere?

I'm using Excel 2013, the shapes where added using the Active-X Controls toolbox.
Registered a macro just to be shure and it shows me "ActiveSheet.Shapes.Range(Array("CB_Dropdown1")).Select".

Tried to change the BackColor via VBA (this is what I really want to do) but no luck at all and stumbling around I found your tip and noticed that for my dropdown shape most of the format options are greyed out. So maybe there's a possibility to resolve?

Hopefully,
Rudolf

Thanks for the tip. If a different object is created by individual line shapes, how can we fill color inside that object? For example, I have created a rectangle using four line shapes instead of rectangle shape from the tool, and my concern is I need to fill the rectangle created by 4 line shapes.