Gradient presets allow you to quickly apply gradients that you use often. You can manage your presets in the Gradient Picker, Presets Manager, or Gradient Editor.
Click Load to add a library to the current list. Select the library file you want to use, and click Load.
Choose Replace Gradients from the palette menu to replace the current list with a different library. Select the library file you want to use, and click Load.
Choose a library file from the bottom of the palette menu. Click OK to replace the current list, or click Append to append the current list.