public void setColors(int startColor, int endColor) {
        mMarkerDrawable.setColors(startColor, endColor);
    }
{@link ViewGroup} to be used as the real indicator.
<p>
I've used this to be able to accommodate the TextView
with the required positions and offsets
</p>

@hide
app/src/main/java/com/duan/musicoco/view/discreteseekbar/internal/Marker.java