Hello, While a lot of time of 2.0 development has been spent on new features and quality of life, we still take care of the smaller details and technical improvements.
Making a new world in Factorio is relatively "easy", just create a new set of tilesets for the ground, add some new models of trees, create a bunch of new decoratives, some decals (optional), a new skin for the cliffs (optional), and bam! you get a new planet.