Utility methods should return self

[koliyo]

Eg

  Colorize bgBlack() {
    return apply(Styles.BG_BLACK);
  }

[stepancar]

@koliyo you can just use cascade notation https://www.dartlang.org/guides/language/language-tour#cascade-notation-

[stepancar]

Do you have another reasons why you want to have itself return for all methods?

[koliyo]

Yes, forgot about the cascade operator, thanks for tip!

But it would still be nice for consistency, or else the apply could also return void, and always prefer using the cascade operator.

[stepancar]

@koliyo hm, agree with you. I have another question. May be we don't need public apply method? In all cases you can call method.

[koliyo]

I don't think it is a problem with public apply method, it can definitely be useful, eg for calling parameterized instead of explicit direct calls to the wrappers.

[stepancar]

@koliyo, maybe let's close this issue?

UPDATE.
Hm, I see #5
With good example why return self is good feature