Default options provided for when a new control is created without values set in options.
defaults provides default values for a Control's options.
Options passed into the constructor function will be shallowly merged
into the values from defaults in setup, and
the result will be stored in this.options.
Default options provided for when a new control is created without values set in
options
.defaults
provides default values for a Control's options. Options passed into the constructor function will be shallowly merged into the values from defaults in setup, and the result will be stored in this.options.