One of 2.0 release goals is get a more friendly and responsive UI in User and Admin Side. The job is next to the end.
A minor advance shows the point: Smarty debug.
The classic look and feel is really ugly and outdated.
Let´s go with the improvements:
Now it is tabbable (without loading external files); as our Smarty vars are short the columns widht using better the space available. Color changed according the now look and feel, etc.
And look the vars content: now there is more text; before sometimes the info was too short. By default Smarty debug cuts off the longer strings to a max of 40 caracters but passing some values with a modifier you can override this behaviour.
If you like a different value for vars content look the line 211
Just change 400 for you own value.
And the good news is you do not need wait for 2.0 final to use these changes: just replace the file for the new in /libraries/smarty/debug.tpl