In the GNOME desktop, features for aiding users with impairments are configured from the Accessibility panel.

On the panel, accessibility features are listed according to groups.

• Seeing

  Includes accessibility features and options for users with visual impairments. You can enable and customize the following settings:

  High Contrast

  Adjusts the contrast of windows and buttons on-screen so they are more or less vivid.

  Large Text

  Enlarges the font so that it's more readable.

  Cursor Size

  Increases and decreases the mouse cursor size.

  Zoom

  Magnifies text so that it's more readable.

  Screen Reader

  Reads aloud screen content to supplement visual reading. For details, see Configuring the Screen Reader.

  Sound Keys

  Beeps when the Num Lock or Caps Lock key is turned on or off.

• Hearing

  Includes the Visual Alerts option to aid those with hearing impairments. When enabled, the option provides a visual indication when an alert sound occurs. Available options include: Flash the window title and Flash the entire screen.

• Typing

  Includes accessibility features and options for users with mobility impairments. You can enable and customize the following settings:

  Screen Keyboard

  Enables desktop navigation and application use without a physical keyboard.

  Repeat Keys

  Specifies that the keyboard not repeat letters when a key is held down. This setting also enables you to change the delay and speed of repeat keys.

  Cursor Blinking

  Causes the cursor to blink in text fields when enabled.

  Typing Assist (AccessX)

  Opens a submenu that contains more keyboard settings. For details, see Configuring Typing Assist.

• Pointing & Clicking

  Includes accessibility features and options for users with motor impairments that render using a mouse or any pointing device difficult.

  Mouse Keys

  Enables you to control the mouse pointer by using the numeric keypad on your keyboard.

  Locate Pointer

  Enables you to find the position of the pointer on the screen by pressing the control key.

  Click Assist

  Opens a submenu that contains more settings for clicking the mouse. For details, see Configuring Click Assist.

  Double-Click Delay

  Enables you to adjust the length of time to delay the double-click action.

For more information about universal access in the GNOME desktop, go to https://help.gnome.org/users/gnome-help/stable/a11y.html.