Paused icon (endless-sky#412)

Author: Zarkonnen

copyright

@@ -3653,6 +3653,11 @@ License: public-domain
  From the USGS, and therefore in the public domain because it was created by
  government employees while doing work for the government.
 
+Files:
+ images/ui/paused*
+Copyright: David Stark (zarkonnen@gmail.com)
+License: CC-BY-SA-4.0
+
 License: Depends
  Taken from unsplash.com. Until June 2017, this was a collection of photographs that had been donated and
  placed in the public domain. In June 2017, Unsplash modified their terms and conditions to make all images