emacspowerline

what do emacs powerline items mean?

I finally got emacs powerline to work. It looks very nice. I can't seem to find any documentation on it though. What does - 299 UU-: and All mean in this screenshot

enter image description here

What else can it tell me? Are there any docs?

Solution 
  • --  
Indicates that the buffer has not been changed since the last save
**  
Indicates that the buffer has been changed since the last save
%%  
Indicates that the buffer is read-only (can't be changed)

    More info here https://kb.iu.edu/d/ablq https://www.nada.kth.se/cgi-bin/info?(emacs)Mode%20Line