SmartPlug glows in different colors. What do they mean?

The LED light is red when SmartPlug has turned your appliance on.
The LED light is green or has no light when SmartPlug has turned your appliance off.
The little dot lights in green when SmartPlug is connected to Wi-Fi.
The little dot lights in blue when SmartPlug is ready for configuration (not yet connected to Wi-Fi).