Custom scatter chart widget

Hello, i want to create a custom scatter chart that has some properties like data, x-axis label, y-axis label, height, width, point size, point color, bg color, axis color, grid lines, title, tooltip, etc, and some events like data change, double click, etc. I have found below-attached fils from the community but I still have no idea for runtime.js file, can anyone provide me some docs or any file or code that can help me to create a custom scatter chart