Digital painting software is kind of like a virtual paint box.
Digital painting software is kind of like a virtual paint box. All of them emulate traditional tools on some level, particularly the paintbrush and canvas. Some softwares try to emulate specific types of traditional art more deliberately than others, such as Artrage providing textured canvases designed to look like watercolour paper, smooth bristol, stretched canvas etc, as well as oil painting tools, palette knives, watercolour brushes and water droppers etc.