You can change the color of the text itself and its background. The commands for this purpose can be accessed via the ribbon tab Home | group Character.
Applying via the icons of the command group "Character"
For the Font color 
, proceed as follows:
| 1. | Select the desired text and click on the small arrow to the right of the icon (i.e., not on the icon itself). |
| 2. | Select the desired color from the dropdown menu. In addition to the Standard colors, you can also select colors from the Slide color scheme, which are defined for the slide design. For more information see Creating and editing a color scheme. |
| Tip: To format more text in the same color, select the text and then click on the icon itself because the last color used will be applied again. |
If you also want to highlight the text background with a background color, switch to the dialog box of the command group "Character"(see below).
Background color: In the dialog box of the command group "Character"
Insofar as only the font color is concerned, the options in the dialog box correspond exactly to the button described above. However, you can also change the background color in addition to the font color in the dialog box.
Proceed as follows:
| 1. | Select the text and click on the group arrow in the bottom right corner of the ribbon tab Home | group Character. In the dialog box, switch to the Font tab. |
| 2. | Open the dropdown list Background color and select the desired color. |
Notes
Color lists only offer a few standard colors, but you can always compose your own colors. To do so, click on the entry Define color... at the end of the dropdown list. (For more information, see also Document properties, Colors tab.)