Removed Colors::getMaybe() method. Use Colors::get() with new 3rd arg.
Removed Colors::getMaybe() method. Use Colors::get() with new 3rd arg.

Also removed getenv() call made eduring each call to handler method, as
env vars are quite not possible to change from outside during runtime.

Thus, let's read and store the NO_COLOR env var unly when loading the class
and then use the stored value.

smuuf/primi,smuuf/primi,smuuf/primi