red running app icon

[MadMexican73]

Is there a reason why is red?

Posted via the Android Central App

 

[Rukbat]

More than 0 apps running. You can glance at the color to know, instead of reading the number. (It may not matter to you, but some people might prefer it.)

 

[daimien]

Notification maybe?

Posted via the Android Central App

 

[dpham00]

It means something is using the cpu a lot. You can tap on it to see the details

Sent from my Verizon Samsung Galaxy Note 4