Format the Text Box
The
Text Box, itself, can be formatted. PowerPoint has an impressive
set of Drawing tools on the Home menu.
Before
You Begin: Select the Text Box.
This is a bit tricky because you have to look carefully at what is
selected. When you type in a Text Box, you should see the cursor.
The Text Box also has a border. Click on the border.
Try
This: Format the Text Box
Go to
Home ->Drawing.
Select:
Shape Fill.

What Do
You See? The Shape Fill options include solid colors,
tints, as well as gradients.