1. It is a tool enables you to color close shapes and figures.
2. It is a medium of expression that communicates ideas through images, often
combined with txt or other forms of visual information
3. It is a speech indicator, containing the characters dialogue.
4. This principle helps the line stands out more (color wise) so you do not get confuse,
when you start your sketches, with which line are on which layer.
5. It is a very first step to create a comic or graphic novel is to develop a story line.​