Google Slides has built-in slides, to which users can add their designs. Google Slide users can change the font, font color, and background of the Slide. They can also change the theme of the slide.

You can change the size of a slide in your PowerPoint presentation through the "Design" menu. Microsoft PowerPoint allows you to change slide sizes on the Windows PC, Apple MacOS, and web-based apps.

Google Slides theme is a preset group of colors, fonts, backgrounds, and layouts. When you change the theme color, you will see different options to change the color of different elements in a slide ...