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ScrollView : Change the edge effect color with Holo
new ScrollView(this) {
        @Override
        @ExportedProperty(category = "drawing")
        public int getSolidColor() {
            // Set a background color to a color you want for the edges.
        }
    };

<ScrollView
...
android:background="@color/yourColor"
... />

<ScrollView
...
android:overScrollMode="never"
... />