- handle maximize

*** done *** - cursor rendering

*** done *** - options dialog
*** done ***   - tab settings

*** done *** - image handler
*** done ***   - basic stuff is working

*** done *** - background rendering
*** done ***   - in process
*** done ***   - problems with relative backgrounds

*** done *** - non-tabbed windows

*** done *** - console: custom shell

*** done *** - tabs: customize default console settings

*** done *** - appearance: settings for view menu/toolbar/statusbar on startup

- cursors: optimize painting for animated cursors
