# cx: Lines of context; sl: Matching lines; mt: Search string; fn: Filename
# ln: Line number; bn: Byte offset; se: Separators.
colours=$(tput colors 2>/dev/null)
+ [ -z "$colours" ] && colours=0
if [ $colours = 256 ]; then
export GREP_COLORS='cx=38;5;246:sl=:mt=33:fn=38;5;25:ln=38;5;82:bn=33:se=38;5;246'
elif [ $colours -gt 88 ]; then