The Chart.js for Confluence plugin wouldn’t be possible without other great people providing their work to the community for free. Lewe.com does not take credit for these products, it all belongs to their authors.
Lewe.com developed the app and macro framework to make the use of these products possible in Confluence. A license for this app framework can be obtained via the Atlassian Marketplace.
The colorful chart icon used for the app is the beautiful work of cemagraphics. It is available for free here: