As a workaround, I have reverted to using the v2017.21 Teechart in Delphi 10.2 Tokyo. In other words, I am skipping v2017.22 due to this bug.

To reproduce the issue, add a TChart to a FMX Multi-Device Application and insert the code below into the implementation section. The code below adds two custom tick marks and labels to the TChart bottom axis and sets the axis labels to be large and red. It works fine in Delphi 10.1 Berlin with Teec...

I can enter a custom axis label using E-notation. For example, 1.23E3 for 1230. I attempted to use superscript notation by setting Chart1.LeftAxis.LabelsExponent:=True; Chart1.BottomAxis.LabelsExponent:=True; But, in the example above, this gives 1.23[super]3[/super] where I was expecting 1.23 x 10[...

I am trying to obtain a pixel color in the OnAfterDraw event with X := Chart1.BottomAxis.CalcPosValue(XCoord); Y :=Chart1.LeftAxis.CalcPosValue(YCoord); AColor:=Chart1.Canvas.Pixels[X,Y]; But this always returns claWhite even though I have applied color fill with the Series Region Tool during the pl...

I set up a series with ASeries := TLineSeries.Create(Form1); with ASeries do begin SeriesColor:= claSilver; LinePen.Mode:=pmXOR; end; Chart1.AddSeries(ASeries); // Then add some points with ASeries.AddXY(x, y); ... The line setting the pen mode appears to have no effect. Where am I going wrong? I ha...