SSTV Encoder 2
Copyright 2017 Olga Miller <olga.rgb@gmail.com>

Mode specifications were taken from "Dayton Paper" of JL Barber:
http://www.barberdsp.com/files/Dayton%20Paper.pdf

sym_keyboard_done_lxx_dark.png icons were taken from
android.googlesource.com

ic_launcher.png were created using GIMP:
http://www.gimp.org/