display_manager ->system_colours_changed: Reload the system colours (sys_* and the platform specific
names) from the desktop settings. Colour
objects of these names change their value in place and the theme colours
are resolved again. Next, run display_manager<-system_colours_message
and redraw all windows if anything changed. xpce sends this message if
it is told that the desktop settings changed, e.g.,
if the user switches between light and dark mode. An application may
send it as well.
- See also
- class theme_colour
