Difficult to select lines

[bitnapper]

First of all: great thing you did. I really like it.

I tested it with Firefox (37.0.2) on Ubuntu (14.04.2) an the line are hard to select because they seem to be very small.

[grundid]

Thanks.
Could you please provide a screenshot?

If you have very short ways, they could be hard to select. You would have to zoom in.