Below the chart, you can use the legend to control which curves are displayed (e.g. Actuals, Forecast (FC), Limit).
Selecting the Actuals (what is included?):
The Actuals are based on the bank transactions actually booked on the connected accounts.
If there are several accounts, you can adjust the display in the header using the small drop-down next to the Account Balance (e.g. account selection, i.e. which accounts are included in the Actuals – depending on the setup).