Final answer:
The Ion template may come with various color schemes, and the selection of one (blue, green, red, yellow) should align with the presentation's topic and intended message.
Step-by-step explanation:
When creating a new presentation using the Ion template, the color scheme you should select depends on the specific version of the program you're using and your personal or project-related preference. Typically, templates like Ion may come with a variety of built-in color schemes, including blue, green, red, and yellow. Since the Ion template doesn't necessarily dictate a specific color scheme, it would be best to choose one that aligns with your presentation's topic, audience, and the message you want to convey.