DivKit Pro
· DivKitPro is a framework based on <a href="https://github.com/divkit/divkit">DivKit</a> for displaying screens according to certain rules.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window div-pro-1.2.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.