I am a user of VLC for playing video files. On the Mac VLC does not (out of the box) support multiple concurrent instances. But I found an article (https://wiki.videolan.org/How_to_play_multiple_instances_of_VLC/) which gives an Applescript to allow this to work. I saved the script as an application, as the article recommends, and I associated file types (avi, mp4, wmv, mkv and so on) with this new application. I then opened Get Info on the new application and I dragged the normal VLC icon onto it to set a 'custom icon'. The good news: double clicking an associated file type does launch this new application and I can have multiple VLC windows open at once playing different videos. The bad news: even though the application itself shows the standard VLC icon, all the files and file types associated with the application show the generic OSX 'folded sheet of paper' icon. I have restarted my Mac, I have run Onyx to clear caches and nothing seems to work to change the icons shown for the files. Any advice? EDIT: I am currently running OSX 10.10.5.