What does paintbrush icon mean at top of my phone?

[Android Central Question]

What does paintbrush icon mean at top left of my phone?

 

[Javier P]

Welcome to the forums. Do you have Clean Master or any other cleaner app installed on your phone?

 

[chanchan05]

If you have a Samsung phone, the Theme store also has a paintbrush icon.

You can always just pull down the notification bar to expand it and look at what the notification is.