My implementation of Floyd-Steinberg Dithering from Coding Train's Coding Challenge 90.
D̡̺͖̘͔̿̋Î̥͍̱͡Tͪ̍͆͏̥͔̩͇͇H͌͠Ȇ̌̉ͯ̿͊́R̳̦̖̱̟͒ͫ͐̅ ̖͇̭͇͎̖͊͐̽ͪ̀K̢͓̯͕̫̠̰̯̀̋͐͛̋͌I̻̐̄̋͝T̖̙͈̞̦͖̓ͥͤ̏̒͝ͅT̑̄̅Y̧͕̮̯͎͛́ͅ ̙̞̖̖͎̳T̺̜͋͆̏ͪ̊̈̉H͍͎̳͙͙͑͑͛ͩR͌͆ͣ̄̿ͩ͏I̥̲̦̤̺͛ͮ̾ͣV̘̻ͬͤ͊̒ͧ͡Ẽͬ͗ͭ̂ͦ͏͈S̟ͥ͑̿ ̑͑̈́͏̰͍̺̺͖͍̰I̤̗̹ͨͥ̂̓̑ͥǸ ̶̲̰͚͖̺̯̮̋͑C̲̫̗̳͉̺̋̓̔̾ͬͧ͂H͟Ǎ̶͕O̸̳̪ͤ́̆ͩS̢̞̫͔͚͎̼͓