How to change the OnClick color of the StackView in widget

Question

I am building an android widget with the a StackView in it. Using pending intent I open my activity when the StackItem is clicked. Whenever the StackView Item is clicked(i.e. Pressed), the background of the StackItem changes to default blue color. IS THERE ANY WAY TO CHANGE THIS DEFAULT BLUE COLOR TO A CUSTOM COLOUR. Please Help..! Thank you!