Edit: [color=ff0000]This is no longer necessary since version 0.3.012, the new build of PS, supports the editor natively again! Also, this files no longer work and cause an error when entering the game (Error: some widgets failed to load)! So don\'t use this anymore![/color] If you have this installed, remove the readonly attribute of the files and let the updater replace them.
To whom it may concern,
after looking for it I found out that the char description can still be edited, but it is missing all image resources, and therefore the buttons and background won\'t show up.
I edited the appropriate xml files so that it now is easily usable. The icon will be the eye and the background is a bit weird, but the transparency works and you won\'t need to guess the positions of the save and cancel buttons anymore.

My modified files are
here (don\'t use anymore, see above!).
You simply unzip this into the folder \"
/data/gui/\". That will replace your versions with the modified ones. You should then write-protect them so that the updater won\'t overwrite them.
Happy editing!
Edit: found a better background for the window and thus updated the zip