add open and close animations

[WillPower3309]

• fade in
• fade out

[georglauterbach]

Animations would be very nice! Anything we can do to support you? Maybe testing?

[WillPower3309]

Animations would be very nice! Anything we can do to support you? Maybe testing?

if you'd like animations in general, they're currently in the git release. As for open and close specifically no worries, they should be merged soon

[georglauterbach]

That's quite interesting, as I'm building from source already. I must have missed the animations somehow - can you give me a clue where to find the settings? Thanks! :)

EDIT: I've found animation_duration_ms and played around with it a bit, but I couldn't get it to work. What exactly is it for? Nevermind, built the wrong version.

UPDATE: I tested the animations and they look nice! Looking forward to having the fade as well - great job! 🚀

[WillPower3309]

That's quite interesting, as I'm building from source already. I must have missed the animations somehow - can you give me a clue where to find the settings? Thanks! :)

EDIT: I've found animation_duration_ms and played around with it a bit, but I couldn't get it to work. What exactly is it for? Nevermind, built the wrong version.

UPDATE: I tested the animations and they look nice! Looking forward to having the fade as well - great job! 🚀

I'll update the readme to make it more clear to others! Thanks, I'm glad to hear you've been liking them!

[WillPower3309]

Current appearance, want them to pop in an out as well

2026-02-08.03-15-44.mp4

[georglauterbach]

Looks awesome! I would like to report two "inconveniences" that I found while running the latest version. If you want me to, I can also open a new issue so that we do not make this PR discussion bigger than necessary:

1. When opening a second window with smart_gaps on, the gap in the middle is added at the very end, which can be observed well when using a long animation duration. Take a look at the gap in the middle of the screen that appears at the end:

   screenrecord.mp4

   This will probably be less visible with the fade animations?

2. In the video you posted, it looks as if the first window is scaled to the full width of the screen right when the second window is opened and then the first windows is scaled to half of the screen width. This will, only shortly but still visibly, stretch the contents of the first window. Is this intended, and do you think this can be solved?

[WillPower3309]

Need to look into view_autoconfigure() logic to assess the content_width and content_height setting (given the changes in arrange.c)