The post-processing save
icon turns red if the
post-processing setup is changed. It also turns
red if settings in the chart files (all the settings in
Plot->Layout->Edit...)
are changed, but there are cases when changes in the chart files will not be
reckognized, e.g. on File->New and when loading WinMLS. When moving toolbars
around or turning them on/off, the setup toolbar
does not give an indication that the setup
is changed (red icon).