There are a few ways to change the color of your apps on the iPhone. The first way is to open the App Store and search for “color swatch.” Once you find an app that has a color swatch, you can drag and drop it into the app’s row in the App Store. The second way is to open Settings and select General. Then, under “Privacy,” select “Show colors in background.” This will show all of your apps with their default colors. Finally, you can change an app’s color by going to its settings and selecting “Appearance” and then “Color.”