OS X Yosemite: Display pane of Accessibility preferences
Make items on the screen easier to see and the display easier to read.
To open this pane, choose Apple menu > System Preferences, click Accessibility, then click Display.
| Invert colors | Invert the colors on your display. For example, text appears in white on a black background. |
| Use grayscale | Remove colors from the screen. |
| Differentiate without color | Use shapes, in addition to or instead of color, to convey status or information. |
| Increase contrast | Increase the contrast of items on the screen (such as borders around buttons or boxes) without changing the contrast of the screen itself. |
| Reduce transparency | Replace the transparent effect used on some backgrounds in OS X with a darker background, to improve contrast and readability. |
| Display contrast | Increase the screen contrast. |
| Cursor size | Increase the size of the pointer. |
To quickly set some display options, press Option-Command-F5.
You can enable keyboard shortcuts for inverting colors and changing the contrast in the Accessibility section of the Shortcuts pane of Keyboard preferences. To open the pane, choose Apple menu > System Preferences, click Keyboard, then click Shortcuts.