Create a Chart report using any of the metadata, Here we will be using Travel data and generating report as shown below
For making the charts transparent Go to Editor tab click on JS Editor then click on Add to enter the code, then click on Inject to execute the entered code.
Javascript Code:
setTimeout(function(){
$('.c3').css('opacity','0.3');
},200);
Transparency values can be set between 0 to 1 with 0 being completely transparent.
For more info, contact us at support@helicalinsight.com