Have a look at that screenshot:
Now while you can easily identify questions with no answers and questions with accepted answers, it is quite hard to do so for non-score answers (red mark). The question has two answers, but neither of them has an upvote (yet). The questions above and below have voted answers, yet they look the same.
Since the community here is very small and a lot of people are asking questions and then not accepting answers (checking the mark), we have unfortunately rely on the upvoting system. I sometimes do not have much time to read all the questions and all the answers, so I would rather focus on answers that have no upvote. Then either improving existing answers by comment, or simply upvoting if it is good as it is. (As a last resort, write a new answer.) This might overall help the unanswered question problem.
I would like to be able to identify these questions on the go. Now to the actual question: Is it possible to have the colour in the summary for described scenario changed from green to black?
I wonder if this question is more in the scope of meta.se? What do you think? Should there be more or less elaboration?