How to unlock: You must talk to Abbot in Diamond City Market (M6,1).
- Find the paints in the hardware store
- (Optional) Obtain the green paint
- Return to Abbot
- Paint the wall
- Talk to Abbot
Meeting with Abbot
You will find Abbot at the rim of the Diamond City Market - he will be painting one of the walls. Talk with him and you will learn that he needs paint from the nearby shop. During the conversation you can use highly developed Charisma and ask him for a good reward. He will tell you that for delivering the paint you will receive 125 bottlecaps instead of the regular 100. Leave the market and go towards the Hardware Store that is located not far southwest from Diamond City.
Finding the paint
Once you get close to the Hardware Store, you will notice a woman begging for help who will run into the building. It's a part of an ambush orchestrated by the raiders. Despite that, you can use the main door as you won't be attacked immediately. If you don't want to use the main door, check the back of the store. However, watch out for at least two enemies positioned there.
The enemies are hiding near the corridor leading to the back of the store. If you have selected the main entrance, find the road to the basement and walk through the narrow tunnels. If you have used the back entrance to the store, you will find yourself behind them. No matter how you acted, try to sneak up on the enemies and surprise attack them. Once the battle starts, use the shelves as cover and watch out especially for the slightly stronger leader of the raiders - Demo.
Obtaining the green paint and delivering it to Abbot
Once the battle end, you can plunder the store. The paints you are looking for are at the back (if you are very good at sneaking up, you can steal them without fighting the raiders). Pick up the blue and yellow paint. It would be a good idea to complete the side objective of the quest and mix two paints in order to obtain the green color that Abbot wants the most. In order to do it, use the nearby Paint Mixer.
Once you get the green paint, go back to Abbot. Talk with him and paint part of the wall in green. You will receive the previously agreed amount of bottlecaps and additional bonus for bringing the green paint.
Quest rewards: Experience points, bottlecaps.