Several features of this widget is inspired by various articles and code snippets that are shared by those brilliant and nice fellow developers:
The ripple effect on the Sidebar is inspired by Jhey Tompkins' Article.
The styling of the Input Button is inspired by Osvaldas Valutis' Article.
The color scheme is partially referencing to Chris Masterson's Dribbble post.
Coordinates that are used to draw arcs on the map are generated by functions developed by Baidu Map.