in a datagrig column , how to change the background over skin ?
I found backgroundSkin, backgroundSelectedSkin but not backgroundOverSkin.
DefaultDataGridCellRenderer supports skins for all states by default.
I assume that you are using LayoutGroupDataGridCellRenderer instead. It's not intended to be much more complex than a regular LayoutGroup. You are expected to add the features that you need. You may want to check out Feathers Cookbook: How to support multiple touch states in a custom item renderer.