Let’s say it’s bgr. Here is the procedure to invert the colors. Select (click on) : – Display –> Colormaps… – Click on “Edit…” button and the colormap editor will open; for bgr map, the colors will be displayed from blue to red. – Click on the blue color (extreme left of the color bar): Fluent shows Red and Green values set to zero; Blue is set to 255; scroll the bar under Red from 0 to 255; scroll the bar under Blue to 0; you should notice that the extreme left corner of the color bar changed from blue into red – Click on the red color (extreme right) and switch it to blue by reseting Red from 255 to 0, and Blue from zero to 255; you should notice that the extreme right corner of the color bar changed from red into blue. – Under “name”, specify a name for the newly created colormap and click OK. -Click on Apply button in the Colormap panel.