Open the Advanced Instrumentation Settings dialog by clicking the Advanced button. Here you can change the APK signing as well as some instrumentation options. When enabling "Full image comparison", a more robust image comparison mechanism will be used. Enabling this option decreases the apps startup performance but might be useful when having problems with determining resource id's for images. When disabling "Tree simplification", UI-trees will remain unchanged. This means no post processing will take place, resulting in larger UI-trees. Disabling this option decreases the apps startup performance but might be useful when automating 3rd party controls.