Interesting styled template inspired by amChart's built-in Chalk theme, with its related built-in color palette. The irregular background image imitates a real-life chalkboard. Unlike amChart's theme, we used here a cursive Indie Flower Google Font, which imitates handwriting. The original theme, used for inspiration, had also built-in support to draw "shaking" axes, borders and lines.
For CanvasJS. You may need a separate commercial license from CanvasJS for their charts.