The media editors
When needed, both the Library and the project timeline open additional windows for working with particular types of media and other assets. In general, you can open an editor window appropriate to any asset or clip by double-clicking the item.
Corrections from the Library: The editors for the standard media types of video, photo and audio are particularly important. When invoked from the Library (by double-clicking an asset), each of these editors provides a suite of correction tools appropriate to its media type. These tools can be applied directly to Library assets in order to remove camera shake from video, trim unwanted material from a photo, or suppress audio hiss, to give just a few examples.
When a correction is applied to a Library asset, the media file is not modified. Instead the correction parameters are saved in the Library database. They can be altered at any time, or removed, as your needs dictate. The corrections you make in the Library are brought with the asset when you add it to your project timeline as a clip.
Corrections from the timeline: When you open one of the standard media editors by double-clicking a timeline clip, the correction tools are again available, although in this case they apply only to the clip in the project, not to the underlying Library asset.
Effects: When they are invoked from the project timeline, the media editors also offer effects, which cover a wide-range of enhancements in all three media types. Effects range from the practical (Brightness and contrast) to the theatrical (Fractal fire). Effects can be animated with keyframed parameter changes to any degree of complexity. They provide innumerable ways to add creative interest to your productions.
Pan-and-zoom: The Photo Editor provides one more tool, pan-and-zoom, of its own. Like the effects just discussed, pan-and-zoom can be animated with keyframes to create any desired combination of simulated pan and zoom camera moves within the boundaries of a single photo.
Please see Media editing: Corrections for coverage of the corrections, and media editing in general. See Media editing: Effects for information about effects and the pan-and-zoom tool.