What is the z in the upper right corner of oppo?

Coloros version 7-7.2 model: "Settings >; Desktop and music lock screen > set icon style "

(1) You can choose different icon styles, such as materials, pebbles and custom.

(2) At the same time, you can open the Art+ icon and use the tripartite icon redrawn by OPPO designers to customize the icon size and icon content size.

ColorOS 1 1 and above models: "Settings > Personalization > Icon Style" or desktop kneading with two fingers.

(1) Customizability of desktop icons: both the number of rows of icons (desktop two-finger kneading-layout) and the font of application name can be adjusted (desktop two-finger kneading-icon-application name size, if adjusted to the minimum, the application name will disappear, that is, the application name can be hidden);

(2) Personalized icon package, which supports the use of third-party icon package (first install the three-party icon package apk, then pinch the icon on the desktop with two fingers and select the three-party icon package)

(3) In addition to art+redrawing icons, the default style/material style/cobblestone style can also adjust the icon size.

Note: Set Icon Style does not support fully open custom shapes for the time being.

This answer applies to all OPPO models.