JCW wrote

In my opinion a good looking GUI is very fundamental for a programm like this.
I'n study product design, so I have learned that the look and usability is of particular importance for the popularity of a product (or programm).
I also know others who use Librecad and are confused by the icons. It is very inconvenient to leran this programm and understand how it works.
Many icons now are way too detailed and not easy and fast to distinguish. (e.g. Insert Image, Draw Splines, Modify ...) So while working always takeing a close look at the icons or waiting for the tooltips is quite annoying.
Maybe most of you got used to the GUI and have memorized the location of the buttons so these problems may not seem that important for you.

But I think if this programm would have more user acceptance it would get more attention and support.

So I would be very much interested on a new iconset. I would also contribute Icons if necessary.