Bhavbhuti,

>I have tried to modify the backcolor of my text controls. Sticking out like a sore thumb is the TreeView which has the default white backcolor.

There is no native property. You have to do a SendMessage to the HWND of the TreeView control to change its background color:

#DEFINE TV_FIRST  0x1100
#DEFINE TVM_SETBKCOLOR  TV_FIRST+29

nBackColor = ThisForm.BackColor

Declare LONG SendMessage IN WIN32API ;
    Long hwnd, Long wMsg, Long wParam, Long lParam

SendMessage(oTreeView.hWnd, TVM_SETBKCOLOR, 0, nBackColor)

NOTE: You will still need to loop through the nodes and change their back color also.

Search for "TVM_SETBKCOLOR" on MSDN for more info