Hello.
Before I start discussing, sorry about my poor english.

I'm a indie game developer with using Unity3D.
So I using Krita for creating game's asset. (bacgrounds, characters, environments, props...)
It's not bad at all, Krita is great for drawing!

But there's have some problem.
Krita has some good animation functionallity. but however, I think there's something missing feature.

Krita has export animation sequence, but only can export every frames.
The point is, Krita hasn't function of 'export key frame only'.
(export without all overlapped frames)

The reason this is a problem is that do not use every frame when creating a game.
This is because use the least needed frames only for optimization.
If put all overlapped frames to game, that makes increase game size, memory usage, and bad performance to CPU...

Some example story is Cuphead game.
https://blogs.unity3d.com/2019/04/18/cuphead-developers-tips-to-optimize-for-nintendo-switch/
They have problem for porting to Nintendo Switch, because they puts every key frames to their game.
https://blogs.unity3d.com/wp-content/up ... age4-1.jpg
So they optimized character's key frame animations into one image as possible. (texture)

I am always thankful to the contributions of KDE developers.
If Krita have the function to 'export key frames only' from animation, I think it will certainly benefit a lot of people.

Thanks.

Yes, that sounds like a valid request.