Category for a desktop tool needed

[Philipp Thomas]

I need categories for a dock type application and its settings tool and non
of the available ones seem to fit. After discussing this with a collegue,
I'd like to follow his ideas and propose the following:

1) deprecate DesktopSettings in favor of Desktop;Settings

2) add Desktop:
| Desktop  | Desktop management         | Utility, Settings or System  |

3) Be more exact about Accessibility

Philipp