Well thanks to them too but I like the pictures you made because it helps me understand it more than the simple text.
But I know the info is probably unknown but when it says Augmented Flames and says that it has 2 parts [0-2] and it makes fire spells do 25% more damage do people think that means 12.5% for the first skill point invested and 12.5% the second to finish with 25% or do people think with 1 skill point we get 25% and the second could add 10-25% more?
I have painted previous versions of most trees but some were lacking descriptions and/or requirements. Current (Final) trees have been made by herpedyderp at reddit. It was just updating really quickly yesterday so there were many different contributors ( many sources ) but final is herpedyderp.
The perks you are talking about have 2 ranks and each rank gives 25% bonus so it is 50% total. The same goes to similar perks ( the percentage number is for one rank ).