参考如下:
procedure TMainForm.FECalendar1DrawCellProperties(Sender: TObject; ADate: Double; AState: TFECalCellStates; var ALabel: string; CellProperties: TFECellProperties);
begin
if TFECalCellState.csSelected in AState then
begin
CellProperties.Color := 4564132;
ALabel := '选择';
end;
end;