It would be a very useful feature for me if this was to happen.
I looked around in the paint program and could not find a way to disable it.
I am a video game pixel artist and sometimes I would prefer not to use anti-aliasing sometimes when it comes to making pixel related art.
This program almost have what I wanted.
Thank you for letting us know about the good options.
As for the features you pointed out, please give us a couple of weeks because we will certainly support them when we release the next version.