Option to set bones transparancy level, for the viewport 2.8

It be nice if we could set the level of the bone transparency (by a slider) for a viewport. I already like they are currently transparent, but its just on off only. There are times that as an Artist I want to visually judge my scene and alter it to improve it. Those times I wish the bone system was just barely visible, enough to pose, but weak enough to get a good impression for the scene as a whole, (ea not getting distracted by bones.)