How to get notified when WiFi Router color turns red from green in Swift?

I want to get notified when my WiFi Router color changes from Green to Red

I am making an app which will tell you whether you are online or offline from menu bar in Swift which is open source & can be found at https://github.com/deadcoder0904/net-alert

I want to know if its possible to get notified when WiFi color changes in Swift.

I can't constantly ping my server to know that the color changed as this would be wasting internet resources.

So is it possible to know this in Swift?

from How to get notified when WiFi Router color turns red from green in Swift?