There's no timeline for when we will get accent colors. I said a while back that we would implement it in Q but then we realized how much work it is. It's a lot of code we need to go through to add this feature. Something we need to weight against the value. Because of this, whenever something more important comes up, it moves down on the list.
We know there are a lot of users who requesting this feature but its importance is quite low compared to a lot of other things that we need to focus on. I hope one day, we do find the time to begin this project. I really do, but unfortunately I will never be able to give you a timeline.
