Add a setting to change the appearance of blueprints

[hugoattal]

Some people would like some change and the blueprints node

Please make upper color line from GET/SET nodes a bit thicker as it is very thin to be seen clearly

The brightly colored pills for variables make finding things in a large blueprint nice and easy. The new look is great, but you lose that pop-out color you get with the default theme. I'd like to see an option to make those nodes the same flat color as their type with white/black text.

[hugoattal]

Added a VarNode style variant

Solid	Dark Glass	Light Glass

Added a VarNode line variant

Thin	Thick

Ready for 1.3 🥳

[hugoattal]

Update available!