Filters appear in the Filters category in the Library, organized into subcategories specific to their function (such as Color Correction, Blur, and Tiling). After you select a filter in the stack, a preview and brief description of the filter appears in the Library preview area.
In the Library sidebar, click the Filters category.
A list of subcategories appears on the right side of the sidebar.
Click a filter subcategory.
A list of filters in that subcategory appears in the stack.
Click a filter in the stack to select it.
A preview and short description of the filter appear in the preview area at the top of the Library.