New timetrack doesn't show whether the vertex is off or on

In old timetrack, parallel lines were used to indicate whether the vertex is on or off.
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There are vertical red lines to tell from that time on the (list element) vertex is off (overlapping the waypoint), and vertical green ones to tell it’s on.

I noticed it recently and started to code it: https://github.com/synfig/synfig/pull/2385

Do you like the vertical lines to show for how long it’s off? By the way, I noticed that the old timetrack display it wrong if you resize the timetrack widget. :stuck_out_tongue:

Having some kind of an indication for the period when the vertex is off would be a good idea. :grinning:

Any suggestion? Or are those parallel lines good?

Parallel lines seems good as many synfig users might be already aware of it.