0.4:
- de support indicator: lxde, xfce, gnome, classic, mint, cinnamon, unity, kde
- de support tray icon: lxde, xfce, gnome, classic, mint, cinnamon, unity, kde
- label guide bug? -> file bug
- try to recover some translations for colors in pref dialog, menu items etc.

0.5:
- gtop shared mem is always 0, remove or reuse? - alert color?
- error messages for expressions not only on stderr
- more providers: temp, disk temp, disk space
- icon styles: text, bar, chart, checker board
- render text ourselves
