Traditional Culture Encyclopedia - Photography major - How can a computer have a solid background?

How can a computer have a solid background?

1. Open sogou search, enter "solid background wallpaper" and click the search button.

2. On the search page, click "Picture" at the top.

3. After clicking, the search results are all corresponding solid color backgrounds. Find what you like and click Open.

4. After opening the big picture, click the download button below. So the computer downloaded a three-dimensional background.