The Linux terminal in which XRPi runs can only display 16 colours, and their names, as used within XROUTER.CFG, are as follows:
"Dark:"
| BLACK
| NAVY
| GREEN
| CYAN
| RED
| MAGENTA
| ORANGE
| SILVER
|
"Light:"
| GREY
| BLUE
| LIME
| TURQUOISE
| PINK
| CERISE
| YELLOW
| WHITE
|
The names are misleading, being inherited from XR32 where the display pallete was different. For example, on Windows, PINK is more like light red, and ORANGE is more of a brown colour, whilst RED is more like maroon.
The diagram attempts to shows the colours as they actually look on the Raspberry Pi, regardless of the name.
On DOS, only the "dark" colours could be used for backgrounds, but on Windows any colour can be used.
Some colour combinations display clearly, others are difficult to read. For instance, WHITE text on BLACK background is clear, as is YELLOW on NAVY, but BLUE on BLACK, or PINK on LIME are hard to read. The optimum background colour for most text colours (or vice versa) is BLACK.
The background colour of the top status bar is fixed at SILVER, and the status windows all have RED title bars with WHITE text, and BLACK background for the main pane. These colours were carefully planned and are not adjustable. If you choose a SILVER background for a console's top line, it will blend with the top status bar above it and look untidy.