Possible get more modern looking charts?

You can’t use javascript directly in Ignition.

However, what @sungkhum you could do, if you know web development, is to write your own front end in react/vue/vanilla htmlcssjs, buy the web dev module for Ignition (the cheapest module they sell fwiw) and use Ignition Web Dev to make API endpoints that your front end hits. Then you can use any modern javascript charting library you’d like. All Ignition would do is provide data to be consumed by your custom web front end.