See the simple example below.
As it is, the text that should be drawn with transparent brush, is drawn with white brush.
If you comment the series FillSampleValues, then the text with the transparent brush is drawn as it should, but the text with the red brush is also drawn in transparent!
This worked fine until v2014.10.140220

var Chart1: TChart;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Caption:=TeeMsg_Version;

  Chart1:=TChart.Create(Self);

  with Chart1 do
  begin
    Parent:=Panel2;
    Align:=alClient;
    Canvas:=TTeeCanvas3D.Create;
    View3D:=false;

    Color:=clSilver;

    AddSeries(TLineSeries);
    Series[0].FillSampleValues; //comment this

    OnAfterDraw:=ChartAfterDraw;
  end;
end;

procedure TForm1.ChartAfterDraw(Sender: TObject);
begin
  with Chart1.Canvas do
  begin
    Font.Size:=15;
    Brush.Color:=clRed;
    Brush.Style := bsSolid;
    TextOut(100, 100, 'The brush of this text should be red');

    Brush.Style := bsClear;
    TextOut(100, 150, 'The brush of this text should be transparent');
  end;
end;