Entering the theme page, the theme under the “Color” section is a free theme that can be used by all users. The images in the free theme are different colors to choose from. If you cannot find your favorite color, you can click on the last colored image to enter the color selection page, manually adjust to choose your favorite color, and adjust the color depth. At the same time, the sun and moon icons below can respectively view the daytime mode and dark mode corresponding to this color theme.