Painting

Paintings in Minecraft are simple, low-resolution versions of a canvas; they currently appear in Beta, Alpha, Infdev, and Indev. Most of the twenty four (19 in indev and infdev) current canvases are by Kristoffer Zetterstrand and are shrunken to a low resolution to fit Minecraft's graphical theme. Five more are edits or new paintings. A random image from among these is chosen each time a painting is placed. Paintings currently are not flammable. Paintings can only be placed on flat, vertical surfaces. An easy way to get a painting to fill up the area you want is to place it in the bottom-left corner. It expands canvas size to the top-right to fill up the wall the best it can, though it may still take a few tries to get a large painting.

If hit with a throw-able item (such as an Egg, a Snowball or an Arrow), the painting will drop from the wall and can be picked up and placed again. Arrows will disappear when they hit a painting.

There is a glitch that allows you to place a torch on a painting if you hold down the right mouse button and roll across the painting.

Crafting
Paintings can be crafted with any color of wool. The color of Wool used does not have an influence of the picture chosen when the painting is placed.

As of Beta 1.2, paintings will drop when any supporting block is removed, making the creation of "Secret Doors" more difficult. You can still attach a larger painting to a block beside a door, and it will cover the door, making it hidden. Note that ladders, signs, and pressure plates technically count as full blocks, but only signs, doors, and pressure plates can be used to aid in the creation of secret passages. Also, trying to open a door behind a painting may knock the painting off the wall.

Paintings may additionally be used to hide chests in walls, as the painting will not prevent a player from opening the chest. This is especially useful on large multi-player servers.

Paintings are not technically a block, and thus can simultaneously exist with water and torches in the same space as itself. An example of this is: place a torch on the wall, place a painting on the same block of the wall by clicking on the wall (not the torch). If the painting is 1x1, it cannot be removed without first removing the torch. Larger paintings on walls covered with torches can still be removed by left clicking. Players and mobs are able to walk through paintings, and light shows through paintings as well.

Canvases
There are currently 19 canvases in Indev, but there are 24 in Beta. These are mostly based on paintings by Kristoffer Zetterstrand, who also created the Minecraft versions.

Bugs

 * It is possible to get two paintings from destroying one painting.
 * Used to be indestructible in SMP, only dropping "fake" paintings every hit, which could not be destroyed or picked up. This was fixed in Beta 1.2.
 * When a painting is placed it sometimes shows a four by four area of solid purple with darker purple between each block. This is because Notch forgot to update the painting texture for the Beta 1.2_01 build, when he added a new painting.
 * A painting placed over a light source (like a Jack-O-Lantern) will allow the painting to act as a lamp-shade, lighting the room.
 * A painting can have a sign or another painting placed in the same block space (but on a different face), this is because a sign is an entity, so it technically does not take up the block it is in.