1. First, load in some data and an example display from the Displays→Favorite Bundles→ToolBar→Workshop→Color table exercise menu.
2. Note the color table that is used. By default this display uses the Temperature color table for the temperature field.
3. Change the color table for this display to the new color table, Comfort by clicking on the Color Table button to popup the Color Table menu.
4. Change the range.
• Note the range that is being used is -90.0 to 45.0. This is the default range for temperature data. However, our Comfort color table was set up to use -45 to 45 as a range.
• Change the range through the color table menu by clicking on the "Comfort" color table. You can also click on the legend's color bar or through the display control's Edit→Color Table→Change Range... menu. Enter the values -45, 45 and click the OK button.
5. You can quickly change the entire color table for this display.
   • Click on the "Comfort" color table to show the popup.
   • Select Dimmer.
   • Select Brighter.
   • You can also change transparency.
6. Bring up the Color Table Editor by clicking on the color bar in the control window.
• Changes to this color table are automatically applied to the display unless the Auto update checkbox is unchecked.
• Let's make our "comfort" zone be semi-transparent.
  • Select 80% transparency.
  • Right click on the breakpoint at 15 and select Set Colors→Transparency Right.
  • Click the Apply button if Auto update is turned off.

Unidata IDV Workshop for version 7.0u1 > Accessing and Displaying Data > Color tables