Hi, guys. Newbie here, checking out this awesome editor. Kudos to the author(s)!
+1 for always showing a folder name on the tab. Should be a user setting. Consider this structure:
Open two of the index.php files, all is well. After hiding the sidebar and closing one of them, how do you quickly tell which file you are working on (besides the filename in the window title, which is "unreadable" on a 1920px wide notebook)?
I would go even further and make it intelligent. Internally you know if there are duplicate filenames down the main folder structure and only show folder name for those files. This way site.css would never show a folder name, but all the index.php files would.