When the -c option is used saidar uses colours
to display the data. Each area has a different colour to
distinguish it from the nearby fields. Bold and reverse video
effects are used to emphasis fields where necessary.
The load average figures are displayed in bold when theyre
notably (greater that 1) different to each other. This purely
shows that a change in the load is occurring.
When CPU usage goes over 60% it will be displayed in bold.
At 90% the field is displayed using reverse video. Likewise
for memory, swap and disk usage at 75% and 90%. Zombie
processes are also highlighted.
Other values (paging, disk I/O and network I/O) are not
highlighted due to the nature of the values; its not easy
to determine what thresholds are significant.