Matthew Paul Thomas, Canonical Design

Ubuntu contains System Settings on PC (gnome-control-center), based on my original design from 2008, and on phone and tablet. (For a summary of the design process on phone, see my 2013 article on the subject.) In line with the goal of a convergence device — not to mention, ordinary learnability and efficiency — these settings, and their categories, will be shared across form factors whenever practical. However, some settings will only ever make sense on one or two form factors.

This index does not yet include all settings panels included on the PC. It does include other things — such as version information — that, for want of a better position, are presented inside the System Settings UI in at least one form factor.

General behavior

Unless specifically noted, all interface elements in System Settings should update live to reflect settings when they are changed elsewhere.

PC settings interface

should be documented here eventually, for testability and comparison purposes

Phone settings interface

Errata: • The search field should be present. • The icons should be in color.

“System Settings” should be an unremovable app in the Apps screen, and should be in the Launcher by default.

Whenever the search field is not empty, the rest of the System Settings main screen should consist only of those items matching the contents of the field. For example, if the search field contains “wallpa”, only the “Backgrounds” panel should remain. The search field should empty itself if you had switched to other apps for at least five minutes (because you have likely forgotten that you searched for anything).

If global in-app search is implemented, it should replace the System Settings search field.

Quick access area

The quick access area is a group of list items at the top of the overview screen. It should always contain items for:

Following those, it may also contain other items, in order:

(bug 1239884)

All other items in the main screen should act as page stacks, regardless of whether they are list items (like “About This Phone”) or grid items (like “Sound”). In particular:

  1. When you choose an item, the item should highlight until its screen appears.
  2. If that screen has not loaded within two seconds, a placeholder screen should appear with an empty header.
  3. If the actual screen still has not loaded after another three seconds, a spinner should appear in the center of the placeholder screen.

“Reset Phone”


“Reset Launcher…” (bug 1219793) should display an alert with text “The Launcher will be returned to its original contents.”, and “Reset Launcher” and “Cancel” buttons. If you choose “Reset Launcher”, all the buttons should become insensitive, the Launcher should appear for a second so that you can see for yourself that it has been reset, then you should be returned to the System Settings overview.

“Reset All System Settings…” should display an alert with text “All settings will be returned to their original values.”, and “Reset All System Settings” and “Cancel” buttons. After the reset, you should be returned to the System Settings overview.

“Erase & Reset Everything…” (bug 1292932) should display an alert with text “All documents, saved games, settings, and other items will be permanently deleted from this phone.”, and “Erase & Reset Everything” and “Cancel” buttons. After the reset, you should be returned to the phone welcome screen.

If you use any phone locking scheme, choosing “Reset All System Settings” or “Erase & Reset Everything” in the alert should prompt you to unlock (bug 1388942) before displaying the alert (so that someone can’t confirm the reset and then leave the phone on the passcode/password prompt waiting for you to return, not realizing what the prompt is for).

Tablet settings interface


SystemSettings (last edited 2014-11-11 11:04:16 by mpt)