Transparent Colors

You can now use partially transparent (non-opaque) colors in most places where color can be controlled, such as line and fill colors, by specifying an RGBA color value instead of an RGB color value (the A stands for alpha). From dialogs and menus, you can use the new Color Picker, which has built-in support for selecting non-opaque color values. For more information, execute the following on Igor's command line:

DisplayHelpTopic "Color Blending"
 

Error Shading

Error ranges on a graph can now be represented using shading. For more information, execute the following on Igor's command line:

DisplayHelpTopic "Error Shading"
 

Gradient Fills

Specify gradient fills for drawing elements, graph trace fills, and graph window and plot area fills using the new "gradient" keyword with the ModifyGraph, ModifyLayout, or SetDrawEnv operations. For more information, execute the following on Igor's command line:

DisplayHelpTopic "Gradient Fills"