Just a small thing. It would be very helpful if the main quest lines could have a different color border in the quest book to distinquish them from other quests. Many times an Quest Giver will give multiple quests at once and so it is nearly impossible to determine which is a side quest and what is a required quest. For some who just want to get to the next world, they dont want to waste time doing the side quests and want to hold off on them until later.