Awesome ... I wonder if you've thought about putting a little icon on the planetary map showing which each planets strengths are? Like the food icon next to a world where food production is dominant?
This may make it easier to target different worlds for their resources, and also make it easier to remember which one is your food basket and which one has all the nerds living on it!
Of course, the AI will need to know how to use this new system too.
Wouldn't it be simpler to change the colour of the planet (opaque when looking at the Planet Management Screen, blue when zoomed out) to a certain colour? Like, Red means Manufacture, Purple means Science, Green means Food, Yellow means Money? This happens automatically once your planet has 51%+ of buildings that lean the planet towards a certain category ie 6 Food Improvements on a 10 tile planet = 60%, that pretty much says "Food Planet", so it's green. Which you might want to change later so you have 6 Research Improvements, so now it's Purple.
Okay, doing that on the Planet Management Screen would obscure the background scene of your lovely rotating Core World, but would that really bother anybody?