[feniv]

It would be nice if the duration of the "slide" animation was based on the time difference between the two slides. This adds some implicit context to the timeline. Things that happened back-to-back will appear quickly (like 300 ms) whereas things with a long time gap in between will appear slowly (2-3 seconds).

[skore]

I also found the easing function on the zoom action annoying. It starts slow and ends fast - the other way around would make it feel a lot more responsive.