Narrow interval at 0 degree

[cybluetree]

Hi, thank you so much for this wonderful tool. I noticed that the interval at 0 degree is much narrower compared to other positions (red arrow). Is there a way to make the interval even across the whole tree? Besides, I'm not sure why the line is not connected in one subtree (blue arrow). Is there a way to fix this as well? Thank you so much!
tree.pdf