The "Latin Small Letter Long S" (ſ — U+017F) is missing from the application
I have no idea why it is missing. Love the program—every symbol I need is there. I was rewriting my XKB layout from scratch and couldn't find the character there. Esh (U+0283, U+01A9) is there, and variations of the long-s are there, but U+017F is not.