Gio.js
Getting Start
Gio.js 2.0
Basic Elements
Configuration
Object Design API
Color and Style API
Working with Data
Callback
Dependence Interface
Advanced Feature
Halo
Halo is the circle of light around the earth. The default color of halo is halo 0xffffff.
The color can be set through configure() as follow:
controller.configure({
        color: {
                halo:0xff0000
        }
});
Or it can be modified dynamically by setHaloColor().