method WriteStream.prototype.getColorDepth

Returns:

• 1 for 2,
• 4 for 16,
• 8 for 256,
• 24 for 16,777,216 colors supported.

Use this to determine what colors the terminal supports. Due to the nature of colors in terminals it is possible to either have false positives or false negatives. It depends on process information and the environment variables that may lie about what terminal is used. It is possible to pass in an env object to simulate the usage of a specific terminal. This can be useful to check how specific environment settings behave.

To enforce a specific color support, use one of the below environment settings.

• 2 colors: FORCE_COLOR = 0 (Disables colors)
• 16 colors: FORCE_COLOR = 1
• 256 colors: FORCE_COLOR = 2
• 16,777,216 colors: FORCE_COLOR = 3

Disabling color support is also possible by using the NO_COLOR and NODE_DISABLE_COLORS environment variables.