Remove or change the current theme - Microsoft Support
To change the theme for your presentation, click the Design tab. In the Themes group, click the theme you want to apply. You cannot remove a theme, but applying the Office Theme will create the effect of a presention with no theme.
Change the look and feel of Microsoft 365 - Microsoft Support
You can change the look and feel of your Microsoft 365 applications by selecting a new Office Theme. To change the color of your Microsoft 365 apps: Open a Microsoft 365 application, like Word, Excel, or PowerPoint. In the top left, select File > Options > General > Office Theme. Choose your favorite option.
Save a slide design (theme) as a template - Microsoft Support
A theme is a slide design made up of cohesive colors, fonts, and effects such as shadows or reflections. A template includes a theme, but also contains instructions in placeholders suggesting what to insert and what types of information the user of the template might want to include.
Create your own theme in PowerPoint - Microsoft Support
Create your own theme in PowerPoint. To make a custom theme, start with a built-in Office theme and modify it by changing any of the colors, fonts, or effects: Change the theme's color, font, and effect settings. Save the settings as a new theme in your theme gallery. These steps are described below. Customizing theme elements.
Set a default theme for your presentations - Microsoft Support
You can change the default theme to a theme that is included with PowerPoint or a theme that you've created yourself. If you haven't already, create and apply the theme that you want to set as the default. For more information about creating a theme, see Create your own theme in …
Understand the difference between PowerPoint templates and themes …
A theme is a predefined set of colors, fonts, and visual effects that you apply to your slides for a unified, professional look. Using a theme gives your presentation a harmonious appearance with minimal effort.
The new look of Office - Microsoft Support
Office has an updated look that provides a more simple and coherent experience, letting you easily focus on your work across all Office apps. Go to File > Options > General > Office Theme and select one of the options from the dropdown menu. Learn more. The visual refresh of Office provides a fresh, new experience.
Use a personal template to create a new PowerPoint presentation
If you want to use a template you've saved for your next presentation, here's how. On the File tab, click New. Select Personal or Custom. (The name varies, depending on circumstance.) Tip: If you don't see Personal or Custom then you probably don't have any templates stored in your templates folder.
Create professional slide layouts with Designer - Microsoft Support
Designer improves slides for Microsoft 365 subscribers by automatically generating design ideas to choose from. While you're putting content on a slide, Designer works in the background to match that content to professionally designed layouts. Designer is …
Use multiple themes in one presentation - Microsoft Support
If you want your presentation to contain more than one theme (layouts that contain colors, fonts, and effects), add another slide master to it, and apply a theme to the new slide master. Use multiple themes in a presentation. Your presentation currently has one slide master with a …
Apply Themes to presentations in PowerPoint - Microsoft Support
A fast way to give your slides an attractive, professional look in PowerPoint is to apply a theme. Apply a theme to all slides, or specific slides, for a unique impact. Select Design. Hover over the Themes to preview how it looks, and select the one you like. Select More to see more Themes.