Blue line, green line, red line – indicate what each colored wavy line is for.

- Blue line: Represents water or a body of water, such as a river, lake, or ocean.
- Green line: Represents land or vegetation, such as forests, fields, or mountains.
- Red line: Represents a boundary or border, such as a country border, state line, or property line.

Blue line: Neutral
Green line: Resistance
Red line: Support