Allow for changes to the templates

[kaihendry]

I've noticed https://github.com/go-echarts/go-echarts/blob/master/render/engine.go

I want to override https://github.com/go-echarts/go-echarts/blob/master/templates/chart.go in particular

idk how you can allow users to override, add Templates to Renderer interface please?

[Koooooo-7]

Hi @kaihendry , you can implement ur own render same in engine.go to do the render thing. i.e.

type MyRender struct {

}

func (mr *MyRender) Render(w io.Writer) error {
	// ...
	return nil
}

func run() {
	bar := NewBar()
	bar.Renderer = &MyRender{}
	_ = bar.Render(ioutil.Discard)
}