Is your feature request related to a problem? Please describe.
no

Describe the solution you'd like
如题

Additional Information
none

@jonafanho

jonathanqwq is saying to display circular lines (lines that have the same start and end stations) in a loop instead of a straight line. It's a good idea, I just never had the time to do it.

He said "Change the circuit diagram display of the loop to a circle-like display instead of a straight line"

@jonafanho
所以你能用谷歌翻译吗？他们都不懂中文
so can you use Google translate?The group can't understand Chinese.

Duplicate / related to #196