thanks to mohammad who guided me on this one. /usr/share/applications/hildon; edit any .desktop file e.g camera-ui.desktop and append following line to desktop entry. Code: [Desktop Entry] X-App-Loading-Image=none it gives a beautiful transition effect when camera app is launched. this can be applied to any menu app. Video link demonstrating the transition; http://www.youtube.com/watch?v=iap4a_KBxic
[Desktop Entry] X-App-Loading-Image=none