Click on the Filter option in Navigation menu / parameter.
The Filter dialogue box appears, and contains numerous controllers with which you can modify the Sparkle effect, for example.
With the help of the controllers displayed, you can alter the sparkle effect properties.
More details of Sparkle filter setting options as well as graphic displays can be seen by clicking here.
Any change to a property is immediately displayed in the preview window in real time.
Of course, you can select other effects using the Filter drop-down menu, the dialogue boxes nevertheless differ from each other, since every effect comes with different setting options. Use of the controller is still the same, for checking purposes every change is displayed immediately in the preview window.
All Filters and their effects can be seen by clicking here.