You can change the text color or text background color of a portion of your document by selecting the relevant text and choosing either Text Color or Fill Color from the character formatting menu.
Selecting either Text Color or Fill Color will show a grid of colors, allowing you to choose from one of 16 colors. Select the appropriate color by tapping it.
If you wish to use a color that is not available in the grid of colors, then tap on the More Colors button. This will show an extended set of colors.
You can change the hue of the colors displayed by adjusting the Hue slider at the top of the screen. When you have found a color that you wish to use, tap it and press the back button at the top left of the navigation bar.
If you want to select transparent as your color, tap on the top left color, labelled "None".
