There's a command that just disables dirt entirely ( $game_player.actor.actStat.set_stat("dirt",0,3) ) and it persists between versions so you won't need to keep reinstalling it every patch.It doesn't mess around with the stats or anything like that, it's just that Lona would have visually no dirt on her, but the NPCs will still treat her as if she have dirt like she normally do (which is pretty much all the time!) So maybe kind of immersion breaking, but I find the game much more visually pleasing like this.