Hi, thanks for your questions.
For pro customers, and future requests, we have a dedicated support portal you can reach us on here: https://support.onedollarplugin.com/form
As these forums aren’t the appropriate venue for Pro subscription support.
As to this issue, we’ll be releasing Shield v7 in the coming weeks to address the lack of transparency in scan results etc. and to generally make things much easier.
The scanner doesn’t keep a track of file contents – this would be a huge undertaking and not really efficient. If you’ve modified your theme files, then the alert is legitimate. It’s not a “false positive” because it’s not alerting to a “hacking event”, it’s alerting to alterations made to your theme files which may, or may not, require your closer inspection. If you know you’ve made these changes, you can click to ignore this warning.
The purpose of this monitor is to alert to potentially unintended file modifications.