Well, I guess you could try it with graphic api functions.
For example:
*** in declarations ***
Private Declare Function GetDC Lib "user32.dll" (ByVal hWnd As Long) As Long
Private Declare Function ReleaseDC Lib "user32.dll" (ByVal hWnd As Long, ByVal hdc As Long) As Long
Private Declare Function StretchBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal dwRop As Long) As Long
Private Const SRCCOPY = &HCC0020
*** in some function ***
Private Sub PaintTheTab()
Dim lngDC As Long
Dim RetVal As Long
lngDC = GetDC(Me.TabStrip1.hWnd)
RetVal = StretchBlt(lngDC, 0, 0, 100, 100, Picture1.hdc, 0, 0, 100, 100, SRCCOPY)
RetVal = ReleaseDC(Me.TabStrip1.hWnd, lngDC)
End Sub
... and add a picturebox ('Picture1' in this example).
I didn't try this out, but it might work. And if you just want it one color instead of an image, just use a one-color image.
Good Luck, Remedy...