Add 'new tab' preview menu, listen to the print command (to show preview) in the preview itself, the Logger and the About window. Show the logger on STRG+L from the preview and about windows.

The oxygen PNG icons have been removed (they were not used anymore), new icons have been added and the globe and forumla icons replaced by svg icons. All icons are either self-made or from breeze/elementary.

Some filters had unnecessary constraints that have been removed. Some periods in seconds were expressed as a number and have been replaced by an expression for clarity.

Move the data merging strategy to 2nd 'column', add troubleshooting help section for the PATH variable (link to SNOWPACK online help)

Wrong (non-interactive) panels were passed to the INIParser. Not grave because the value
would be empty, but still this was fixed. In fact, start removing IDs
from non-interactive panels. They were given in the beginning so that
specific elements could be targeted, but this was never needed. So now
there's less object IDs flying around. There are probably more that will
be cleaned when stumbled upon, until then they do no harm.

Wrong (non-interactive) panels were passed to the INIParser. Not grave because the value
would be empty, but still this was fixed. In fact, start removing IDs
from non-interactive panels. They were given in the beginning so that
specific elements could be targeted, but this was never needed. So now
there's less object IDs flying around. There are probably more that will
be cleaned when stumbled upon, until then they do no harm.

Unfortunately, the Snowpack provided examples require to run on level higher than the config files. This is now possible but made me realize that relative paths should not be expanded against the path of the ini file but against the current working directory (the other convention makes sense for include files but not for the inputs/outputs)

Mathias, maybe you could supply icons for it?

And some basic validation in the xml (somehow the full regex does not evaluate properly when provided in the xml)

It is not perfect in the sense that the 2DInterpolation section must be created anyway, independently of the use of spatial resampling or not. The same applies to the Grids2D configuration frame. A message is shown to the user, explaining when these should be used...

The "deploy" target for Windows was not working on systems where no Qt libraries are installed, it had to be fixed

The idea was to always be able to start writing an INI, but without an
application highlighting is off anyway and this way everything is
connected better.

I want the Preview window (now: Preview editor ;-) to be a proper tool and not just duplicated info...

read from strings).

Use this opportunity to get rid of semi-confusing initialization
function names that were left from the very early design phase.
Make the MainWindow's openIni() available to the outside.

Make the Checkboxes clear properly so that the 'delete key'  and 'clear GUI' (context) menus work on it.