Panel, ToolBar, CoolBar

Code:

procedure TForm1.Button1Click(Sender: TObject);

var

Bm1: TBitmap;

Bm2: TBitmap;

begin

Bm1 := TBitmap.Create;

Bm2 := TBitmap.Create;

Bm1.LoadFromFile('c:\download\test.bmp');

Bm2.Width := Bm1.Width;

Bm2.Height := Bm1.Height;

bm2.Canvas.Brush.Color := CoolBar1.Color;

bm2.Canvas.BrushCopy(Rect(0, 0, bm2.Width, bm2.Height), Bm1,

   Rect(0, 0, Bm1.width, Bm1.Height), ClWhite);

bm1.Free;

CoolBar1.Bitmap.Assign(bm2);

bm2.Free;

end;