I have seen this before. Prior to writing reef-pi I did an extensive google search to see if anything out there would fit the bill, if so I could have rather contributed to that project instead of writing something from scratch. This one was one of the google search results. I like the dashboard UI. I think we'll eventually have something similar, but with different color themes. thanks for sharingRanjib and all, I am not proposing this (see graphic), because it is quite divergent from our path at this time. But, when I was looking at aquarium controllers on the internet, I found this one and it peeked my interest. I captured the URL in the graphic, if you want to look at it.
The dashboard quite explanatory - the URL has an assortment of dashboard screen captures.