There is an inconsistency that bothered me the most. Compare the node in the 3rd column 3rd row, with the node from the 4th column 1st row. They have the icon aligned to the same side, but their lengths are different. This is really annoying.
The difference between them is that the latter has input and output ports, while the first only has output. My guess is that ports on the left and right change the size where the node's name is located.