Shape Ripple is a library that emulates a ripple like animations with cool tweaks on the go. It runs on API level 11 and upwards.
As addition you can even create your own shape renderer through the canvas to create a custom shape ripple.
Tool tips to coach your users and call out different parts of your UI.
Additionally able to draw your desired views on top of the background shade in order to better highlight them.
RefreshableView allows you to refresh ViewGroup, ListView using pull-to-refresh principle.