Double-clicking a parameter such as Contrast does what?

• A. It resets the parameter to its default value.
• B. It locks the parameter to prevent changes.
• C. It toggles a keyframe on the parameter.
• D. It opens a separate editor panel.

Answer: (A)

Double-clicking a parameter resets that control to its default value, returning it to the baseline the Color page uses for the clip. This lets you undo just that one adjustment without affecting other sliders. It’s not about locking the control, nor about animating or adding keyframes, and it doesn’t open another editor panel—the action simply restores the parameter to its original starting point.