A code to create stylable and dynamic select-options field using choices.js plugin. (https://github.com/Choices-js/Choices)

The code must be inserted to the 'Settings and Integrations' menu on fluent forms. 

Here are some limitations of the code:
1. For the code to work, the 'Enable Searchable Smart Options' must be unchecked. ( This will make fluentforms to render choices.js on the select field. They don't have any hooks / filters to catch this. )

The calc_values of fluent forms is used to identify what color a specific option would look like. For example 1 - blue, 2 - red, etc. This can be changed from the 'getColor()' function.