2. Select the area to be filled in the WORD document, as shown in the figure below.
3. Click Start in the navigation bar above, as shown in the figure below.
4. Then find the icon as shown in the figure below in the toolbar below, and click the inverted triangle icon next to it.
5. Then the theme color will appear. There are many colors to choose from. For example, if we choose red here, then the font will be filled with red.