When all's said and done, green=good, red=bad. For the rest, carry a crib sheet.
Morse - not essential nowadays, most maps and approach plates have navaid decodes on them. If you do still want to learn it there are audio courses available with all sorts of lovely stuff like Elephants In Straw Hats Ten Miles Off (EISHTMO = . .. ... .... - -- ---). No charge for that last bit by the way.