I’m looking for a Mod that’ll show the proportion of time I’m spending on different areas of development as an actual percentage on the lower bar so it’s easier to judge. Does such a mod already exist?
There isn’t a mod that has that but you can request for sure! 
Or make an thread about this idea
Welcome to the forums @HeartsBoxcars
I have made a request of Kristof1104 of cheatmod for this. obviously not sure if it can\will be done.