I simply cannot figure out how to make .txt files open with leafpad automatically. I've added "text/plain=leafpad.desktop" to /usr/share/applications/defaults.list but I'm obviously doing something wrong. Double-clicking on "try.txt" in the File Manager just gets me a list of possible apps (everything on the phone, as far as I can tell!) except leafpad. So the system doesn't even seem to know it's there.

Does someone out there know what I'm doing wrong?