Additional color handling
| Chapter 7. Color handling |

## Additional color handling

Some plot types have additional color handling to facilitate easier handling and differentiation between data sets.

Pie plots

  Pie plots support the concept of color-themes. A color theme is simple a set of colors used for consecutive slices within the Pie. How to specify color-themes is further discussed in Specifying slice colors and using themes.

Color maps

  Matrix (Only available in the Pro-version) and contour plots also have the concept of color maps. This is a range of colors used to indicate the data in the plot. Examples of color maps can be found in Built in color maps. (Color maps are defined and implemented in "`jpgraph_colormap.inc.php`").

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