Turning on High Contrast Mode is required to enable several accessibility options.

To switch to the high-contrast theme:

  • Go to Your avatar > Preferences and select On under High-contrast color scheme. Then click Save to save the settings.

For more information the changes on interface, see High-contrast theme.

If you are using a Mac OSX environment, you also should do the following:
  • Turn on all All controls for full keyboard access by navigating to System Preferences > Keyboard > Shortcuts and selecting All options at the bottom of the dialog.
  • Enable voiceover capability by navigating to System Preferences > Shortcuts > Accessibility and select Turn VoiceOver on or off.