Me too I'm very interested if you redraw some (a lot) of elements.
It's very long and tedious work, but will be a great improvement.
Some advice (even if think you already know that) :
-The position X,Y of terminal must be in multiple of ten (in the crosses of the grid in the element editor)
-The step between two terminal must be 20 for common element like, contactor, fuse, circuit breaker.
-For special element like speed variator, PLC I/O etc.... the step between terminals must be greater (from my experience, 40 is the minimum acceptable, but 60 is better. How do you think about that ?)
-The name of some generic elements (I don't remember which ones) are a reference or a wrong name, you can fix that if you want.
-There is a lot of double or worst triple elements in several place of the official element collection. Also you can remove all of theses elements and keep only one who is located in the appropriate folder.
-There is a lot of duplicated element in the same category only for have the entire set of reference caliber etc... (example circuit breaker 5A, 10A, 20A etc....) QElectroTech must provide only one element of this kind without special information (Ampere, voltage power etc...) and if user want a collection with a set of every reference etc... he can make is own user collection.
Some example about these three last points :
Search for circuit breaker, light...
Thanks for your future contribution, QElectroTech will be better.