Pixel 4 has a new Styles and Backgrounds app that lets you change icons, accent colors, and more. However, if you are in a first generation pixel, a pixel 2, or a pixel 3, you will not get this feature. On the positive side, there is still a way to use it.
Your circular splash screen icons can be changed into rounded squares, squares, and even a drop shape. The accent color used in areas such as the Quick Settings panel can be changed to one of seven different colors in addition to the standard blue. You can also change the system font! You can find out how to do that below.
Step 1: Enable Developer Options
First, you need to unlock the Developer Options menu, which contains your pixel's hidden design settings.
Open the Settings app. Then scroll down and select "Over the phone". Scroll down to the next page and tap the "Build number" entry seven times in quick succession. Enter your PIN for the lock screen when prompted. Afterwards a toast message with the inscription "Congratulations, you are now a developer." Displayed. Scroll down to the bottom of this menu and locate the Theming section ̵
First, you can tap on "Accent Color" to change the theme most often referred to as the "design" of the device, replacing the blue color in menus such as "Preferences" and "Quick Settings" with one of seven other options: "Cinnamon", "Black", "Green", "Ocean", Space, Orchid, and Purple.
If you now tap on "Heading / Text", you can change the font used in all system menus. Apart from the default, there is only one option (Noto Serif / Source Sans Pro), but it definitely looks different.
Finally, there is "Icon Shape". The default is Circle. However, you can change them to Square, Drop, Circle or Rounded Rectangle. The last symbol most closely resembles the symbols of Apple and Samsung.
Once you've selected all the elements, your pixel will feel almost like a new one Device on! The Quick Settings menu uses the shape and color of your icons, the Home screen icons, the Sharing menu, and the Multitasking interface also change the shapes, and small accents, such as the handle in the App tray, use your custom color.