[raducu]

You cannot add a led with a software update :)

[egwynn]

Not with that attitude you can’t!

[Kihashi]

Sure, but you could work around that. Even with a fixed amount of LEDs, you have on, off, blinking, and color to work with.

[Yetanfou]

You can add another word or symbol on an OLED screen though, which is what I'd assume a widget like this would use.