Allows you to check whether the string is valid hexadecimal colour code or not.
Example
Running this code will check if "FF7F5Z" is a hex color. As shown in the alert box, it is not a valid hex color.
alert($plugin function("Data and Files Automation.dll", "$is hex", "FF7F5Z"))
Running this code will check if "FF7F51" is a hex color. As shown in the alert box, it is a valid hex color.
alert($plugin function("Data and Files Automation.dll", "$is hex", "FF7F51"))
