The above example shows you how to create `SteppedAreaChart` 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(
...
"isStacked" => true,
"backgroundColor" => '#ddd',
"legend" => [
"position" => 'bottom'
],
"connectSteps" => false,
"colors" => ['#4374E0', '#53A8FB', '#F1CA3A', '#E49307'],
)