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### 12.2. Using the Gradients dialog

The most basic, and most commonly used, operation with the dialog is simply to click on one of the gradients in the scrollable list, in order to make it GIMP's current gradient, which will then be used by any operation that involves a gradient.

If you double-click on a gradient, you will be able to edit its name. Note, however, that you are only allowed to change the names of gradients that you have created yourself, not the ones that come pre-installed with GIMP. If you try to rename a pre-installed gradient, you will be able to edit the name, but as soon as you hit return or click somewhere else, the name will revert to its original value. It is a general rule that you cannot alter the resources that GIMP pre-installs for you: brushes, patterns, gradients, etc; only ones that you create yourself.

The buttons at the bottom of the dialog allow you to operate on gradients in several ways:

Edit Gradient

  This button activates the Gradient Editor.

New Gradient

  This creates a new gradient, initialized as a simple grayscale, and activates the Gradient Editor so that you can alter it. Gradients that you create are automatically saved in the `gradients` folder of your personal GIMP directory, from which they are automatically loaded when GIMP starts. (You can change this folder, or add new ones, using the Preferences dialog.)

Duplicate Gradient

  This creates a copy of the currently selected gradient. You will be able to edit the copy even if you cannot edit the original.

Delete Gradient

  This removes all traces of the gradient, if you have permission to do so. It asks for confirmation before doing anything.

Refresh Gradients

  If you add gradients to your personal `gradients` folder by some means other than this dialog, this button causes the list to be reloaded, so that the new entries will be available.

The functions performed by these buttons can also be accessed from the dialog pop-up menu, activated by right-clicking anywhere in the gradient list. The menu also gives you one additional function:

Save as POV-Ray...

  This allows you to save the gradient in the format used by the POV-Ray 3D ray-tracing program.

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