Open a Google Spreadsheet.
Enter in some data for a chart or graph.
On the right side, you will see a list of default templates. You can choose one of these.
You can also click “Customize”.
You can set font, chart background, and data range colors. Click “Done” to save this template.
Here is a Video Walkthrough of these steps as well.
If you want these directions in a Document, Click HERE!