Various programs send a 0-length title if no title is configured (e.g., (n)vim with 'title' unset, or mutt without ts_enabled). When this happens, kitty is mis-parsing the data and setting the title to ";".
Various programs send a 0-length title if no title is configured (e.g., (n)vim with 'title' unset, or mutt without ts_enabled). When this happens, kitty is mis-parsing the data and setting the title to ";".