the selection tool is not accurate to select pixels, so if we want to select for example, parts of a sprite, we'll have to do two things
1. select the desired pixels
2. deselect unwanted pixels, that are added by the way the selection tool treats the corners of selected pixels.
Smoothed?
https://i.ibb.co/GnV7nyj/x-lazpaint-selection.gifIn this gif I finish selecting only the left part of the sprite.
while the right side that's already selected, I also did the second step before, deselect the pixels of the corners.
Then when pasting the image we can see how the curves create partial selections.
I guess that "smoothed" kind of selection can be nice in certain cases, but in other as this is a bit uncomfortable.