Under projects -> Settings there is a list of voices used in the chapter. It would be nice if the current utterance selection's selected voice was indicated/highlighted in the "select used voice" list.

I frequently have the "Acting Instructions" box open which has the sidebar scroll so I can't see the top of it, hiding where the current active voice is displayed.

I know you have colors to indicate which voice is currently active, but they don't work well for me with my red screen tinting (f.lux / blue light filtering). I imagine similar color differentiation issues may occur with people who are color blind.