1. You removed build-in sprite editor
We didn't intentionally remove it, C2 is being rewritten from scratch, we just haven't gotten that far yet!
[quote:3kktup38]2. When I resize a sprite (it has one color (eg. red)), then I get some white-red gradient near edges like blurring.
This is typical of linear filtering - nothing to worry about. I suppose the fix would be to use point instead of linear filtering, but there isn't an option for that yet.
[quote:3kktup38]3. When I try to move a sprite by one pixel in Layout editor, then, it's a magnetic effect.
Can you explain this in a bit more detail? I can move objects in the layout with arrow keys one pixel at a time and it seems to work fine.