[Feature Request] Change size of markers

[x3nobyte]

First of all I would like to thank you for your work, the idea is really good and it works perfectly!
Nevertheless I would like to ask for the following:
When you scale down the icons, the timeline itself is displayed very large - more precisely the lines are very long....
It would be nice if you could either scale them automatically in length when you change the icon size, or set up an option in the settings to change the line length independently.
Thanks in advance
x3no