Feature request: Show guide lines only when there are at least N continuous lines in current level

[Frederick888]

First of all, thanks for making such an awesome plugin!

I especially love the option to colourise the guide lines but sometimes it does look a bit excessive.

So I'm wondering if it's possible to only show the lines when there are at least N continuous lines. For example, cyan lines in screenshot can be hidden since there's only one line on this level.

[lukas-reineke]

It is currently not possible, and also not trivial to implement.

I doubt a lot of people would use this, so I don't think I will work on this. But I would consider merging a PR if someone else wants to.