USA Example breaks after updating options

[techfg]

After "updating" the options in the USA Example, the highlight no longer works. The reason for this is due to a string being passed in to options for mouseoutDelay. Other options (e.g. strokeWidth, fillOpacity, etc.) can handle string or int but mouseoutDelay requires int.

Given the docs clearly state int is the expected datatype, solving this in the example itself rather than in the graphics module.