The above example shows you how to create `ColumnChart` using built-in Google Charts. In this example, for purpose of chart demonstration only, we do use mock-up data from array. As you can see, the KoolReport's widget in general support dataSource could be DataStore, Process, DataSource or even simple array.
For example:
...
"options" => array(
"colors" => ['#9575cd', '#33ac71'],
...
)