--gherkin-terminal-reporter doesn't color steps correctly

The gherkin terminal reporter doesn't color the steps correctly.

Let's say I have the following feature with a broken step:

Scenario: Publishing the article
    Given I'm an author user
    And I have an article
    When I go to the article page  # This step is broken
    And I press the publish button
    Then I should not see the error message
    And the article should be published

I expect the output to look like this (the first word in each line is the colouring):

RED:   Scenario: Publishing the article
GREEN:     Given I'm an author user
GREEN:     And I have an article
RED:       When I go to the article page  # This step is broken
RED:       And I press the publish button
RED:       Then I should not see the error message
RED:       And the article should be published
RED:   FAILED

But instead I get an output with all lines in red.
Printing the steps after the failed one is optional.

Start by reproducing the example feature with --gherkin-terminal-reporter and inspect the gherkin terminal reporter entry point. Trace how step results are mapped to colors after the first failure. Done means the scenario and steps use the expected red/green output, with later steps optionally omitted.