Color Templates define a list of Colors to be used for Aggregate Graphs in Cacti. As you add Graphs to an Aggregate Graph, you need to distinguish one Graph from the next within the Aggregate Graph. These Color Templates are a list of colors that will be looped through in Round Robin fashion to render the Aggregate Graph.
Color selection rotates across member graphs for each item to which a color template is assigned. It uses the member-graph index modulo the number of colors; it does not advance once for every graph item or legend entry.
For example, assign an eight-color template to one plotted series shared by 16 member graphs. Each color is selected twice for that series. Additional series can have their own assigned color templates, while uncolored legend items do not add steps to this rotation.
Below, you can see the four standard Color Templates. From the Actions drop down you can Delete, Duplicate, or Sync Aggregates for the selected Color Templates. As with other Cacti objects, you will not be allowed to Delete a Color Template in use.
In the image below, you can see the Color Template edit screen. This simple screen allows you to add, remove and re-order colors in the list.
Shown in the image below, only Cacti Colors are allowed to be selected for Aggregate Color Templates. The Color drop down can be typed into if you wish to search through the list of approximately 340 legacy and Named Colors.
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