# mono command

The mono BASIC program switches output
to a monochrome display from a color display, or sets the visual attributes
of the monitor.

On a system with both a color and monochrome display monitor,
the mono command switches output from the color
monitor to the monochrome display.

## Switches

| /b or /blink | Activates blinking |
| --- | --- |
| /f or /full | Full-intensity foreground |
| /h or /half | Half-intensity foreground |
| /nb or /noblink | Stops blinking |
| /nu or /nounderline | Stops underlining |
| /nr or /noreverse | Stops reverse video |
| /r or /reverse | Activates reverse video |
| /u or /underline | Activates underlining |

## Syntax

```
mono {/switch}
```
Note: Can only be used from port 0.

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Source: https://d3codex.com/tcl/mono-command/ - part of the D3Codex reference.