A major flaw is that railway endpoint may be obscured by boxes and become unable to be relocated. A another flaw is the "fogged" skill tree.
By “fogged,” do you mean that it lacks contrast in the icons, or that they’re too close to each other?
Also, I already fixed the problem with the railway endpoint in 0.1.31. Now, if you hover over it and it is inside the boxes, it hides the visuals of the boxes over it. It may help