Gradient Tool Basics

The gradient tool allows you to create a blend of colors fading into one another on your image.  The colors of your gradient depend on the colors you have selected with the tabs located just below the gradient display.  A rainbow linear gradient is shown to the right.  You can see in the gradient palette that it shows a sample of what these colors will look like as a gradient.  You can choose a linear or radial gradient by clicking one of the buttons towards the top left of the gradient palette. 

Below the gradient display bar is a drop down menu offering you different blending modes for your gradient.  The blending mode you wish to use must be selected prior to drawing the gradient.

Saved gradients presets can be found below the gradient blending mode menu.  Acorn comes stocked with a handful of useful gradient presets.   Just click on a preset and it will load in the gradient preview.

Radial Gradient 

Select "Radial Gradient" by clicking on the circular button towards the top left in the gradient palette.  Moving the tabs in the radial gradient has different effects than in a linear gradient, so there are two gradient displays showing how the gradient looks both radially (top display) and linearly (bottom display).

Creating a radial gradient is similar to a linear gradient, but the point where you start your cursor will be the center of the gradient. The farther you drag your cursor, the more the colors expand.

Gradient Colors

The gradient color positions are controlled by the tabs just below the gradient display.  Moving the tabs left and right will change the position and ratio of the colors.

To remove a color, just click and hold on that color's tab then drag and drop it off of the gradient palette.  Poof!  It's gone!

To add a color to your gradient, open the colors palette.  Select your desired color so that it shows up in the colors palette top display window (just to the right of the magnifying glass).  Drag and drop the color from the colors palette into the gradient display.  

Creating a Transparent Gradient

To create a transparent gradient, you must make one of your tab colors transparent.  To do this, double click on the gradient tab of the color you wish to transition into transparency.  Once you double click on the tab, the colors palette will open.  Slide the opacity (also known as alpha) of the color down to zero.  

And the gradient in your Inspector Palette will look similar to this:

Saving and Deleting Gradients

You can store gradients you create for future use.  Just create your gradient, then click on the "+" button towards the bottom left of the gradient palette.  You can also click on the gradient display window and drag it down to the list of gradients. Or, right click in the gradient list area and choose "Add Current Gradient".  Acorn comes with a handful of gradients pre-loaded.  You can delete previously stored gradients by right clicking on the gradient in the list, then selecting "Delete Gradient".