Thank you for your feedback. We are glad you like this game. We appreciate your valuable suggestions and they will be actively considered. Actually we have limitation of pigment at first, but considering that this is an adventure game instead of a puzzle game, we decide to give sufficient pigment to our players, so they won't get stuck because of the lack of pigment. Meanwhile, we prefer that players can repaint the world as they want. Maybe we will have an expert mode which offers limit resources. Anyway, thanks again for your advice!