If you would like to use the entire library, then download AdaFruit.fzbz, Adafruit_Feather.fzbz or Adafruit_Raspberry_Pi.fzbz and open it in Fritzing (File | Open ...
[Allan Schwartz] decided to document his experience using Fritzing to design, fabricate, and test a custom Arduino shield PCB, and his step-by-step documentation makes the workflow very clear. Anyone ...
I have been trying Fritzing, the free schematic capture and pcb layout tool, which also does breadboard layouts too. It is good? The short answer is excellent – particularly as it seems to be the work ...