Would it be possible to set the texture filter to GL_NEAREST ?
so that there are no fragments, when usinh the autoscale features with atlas graphics.

since this are only 2 lines of code that would not be hard, but a nice features at least to me.

glTexParameteri( ... , GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTexParameteri( ... , GL_TEXTURE_MAG_FILTER, GL_NEAREST)

with the actual smooth filter behavior is the whole app scaling feature useless to me :(