Hi Joe,
Could you reach out to me via email or the contact form? I’d like to get a temporary admin login so I can install the latest version, and I’ll provide the edited KML in case it’s helpful.
The plugin should display the right colors in Leaflet – but only if the KML is valid. As I mentioned before, Google Earth KMLs don’t always seem to work, so you might need to use a different tool to create the KMLs.