set Start Icon Drawable Tint List
Applies a tint to the start icon drawable. Does not modify the current tint mode, which is {@link PorterDuff.Mode#SRC_IN} by default.
Subsequent calls to setStartIconDrawable(Drawable) will automatically mutate the drawable and apply the specified tint and tint mode using DrawableCompat.setTintList(Drawable, ColorStateList).
Parameters
start Icon Tint List
the tint to apply, may be null to clear tint