Right now when prototyping charts in Keen Explorer our embed button just gives you a big block of html, not terribly useful.
We'll improve this and provide options that match your stack (React + keen-analysis, vanillajs + chartjs, etc) with straight forward snippets that you can copy & paste.
When using keen-dataviz we'll also make sure this works with our planned theme builder feature. So you can prototype queries in Explorer and then copy and paste a turnkey visualization that matches your predefined style.