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## Annotation Colors

Colors are very important in a visualization since they help to determine how easy it is to read annotations. VisIt provides a tab in the Annotation Window, shown in figure, specifically devoted to choosing annotation colors. The Colors tab contains controls to set the background and foreground for the visualization window which, in turn, sets the colors used for annotations. The Colors tab also provides controls for more advanced background colors called gradients which are colors that bleed into each other.