There is a red five-pointed star in the upper left corner of the game interface. What is this?

There is a red five-pointed star in the upper left corner of the game interface. What is this? I have not found the option to turn it off!

https://ibb.co/ix92cU Unable to upload image. So I gave a picture link, you can see it here.

pls helpme/.. Also please master me what is the use of this feature?

Useless icon from divine.core, which cant be turned off.