Final answer:
When you change the theme of something, various elements can be changed, such as colors, fonts, layout, and images.
Step-by-step explanation:
When you change the theme of something, different elements can be changed depending on the context. For example, when changing the theme of a website, the colors, fonts, layout, and images might all be changed. Similarly, when changing the theme of a document or presentation, the font styles, colors, and background images might be altered.
Overall, changing the theme allows you to customize the appearance and design of something to suit your preferences or the purpose of the project.