- Update to 0.9.3:
* herbstclient prints error messages always on stderr and normal
output always on stdout (before, both were printed to the same channel).
* True transparency support for frame and client decorations
(requires a compositor like picom, compton, or xcompmgr)
* Colors contain alpha-values (format #RRGGBBAA)
* Do not draw frame background behind clients (so for semi-transparent
client decorations, one does not see the frame decoration behind but the wallpaper instead)
* New command line option '--replace' for replacing an existing window manager.
* New command 'list_clients'.
* The frame attributes ('selection', 'algorithm', 'fraction',
'split_type') are now writable.
* New objects for panels (under 'panels', exposing attributes
'instance', 'class', 'geometry', 'winid')
* The setting 'monitors_locked' is now explicitly an unsigned integer.
* The setting 'default_frame_layout' now holds an algorithm name.
* New client attributes:
- 'floating_geometry' holding the client’s floating size (writable).
- 'content_geometry' holding the geometry of the application’s content.
* The 'shift' command now moves the window to a neighboured monitor if the
window cannot be moved within a tag in the desired direction.
* New command 'lower' to lower a window in the stack.
* The 'cycle_value' command now expects an attribute (and only works for
settings for compatibility).
* New object 'types' containing documentation on (attribute-) types.
* New command 'attr_type' printing the type of a given attribute.
* New client alias 'last-minimized' and 'longest-minimized' for
focusing and unminimizing minimized clients.
* Relative values for integer attributes ('+=N' and '-=N')
* The 'cycle' command now also cycles through floating windows.