A painting is an image (artwork) created using pigments (color) on a surface (ground) such as paper or canvas. The pigment may be in a wet form, such as paint, or a dry form, such as pastels.

Paintings can only be placed on flat, vertical surfaces. An easy way to get a painting to fill up an area is to mark the bounds with any solid block and place it in the bottom-left corner.

It expands canvas size to the top-right to fill up the wall the best it can.