BORDER <value>
This can be used to change the border colour.
BORDER n
where n is a number between 0 and 7.
As the ZX Spectrum manual states:
0 - black
1 - blue
2 - red
3 - purple, technically called magenta
4 - green
5 - pale blue, technically called cyan
6 - yellow
7 - white
- This function is 100% Sinclair BASIC compatible.