Creating app icons and splash screens has been simplified with the Ionic CLI, which automates the generation of these resources for both iOS and Android platforms using the cordova-res tool. By placing properly sized .png images named icon.png and splash.png in a designated resource directory, developers can execute the ionic cordova resources command to produce the necessary images, which are then integrated into the app's build process via updates to the config.xml. The tool accommodates different image requirements for each platform and allows developers to specify platform-specific icons by placing images in respective directories. To ensure compatibility, the process requires Cordova CLI version 3.6 or higher, and it offers flexibility with flags to generate only icons or splash screens if needed. The minimum size for icon images is 1024×1024 pixels, while splash screens require source images of at least 2732×2732 pixels, ensuring adaptability across various devices and orientations. This feature is part of Ionic's efforts to streamline app development, with continued enhancements like Crosswalk integration for Android anticipated in future updates.