Set a default value using the "defaultColorValue" settings namespace
attribute. The general idea is often we want set a value of say "-1"
and let framework handle it. One such scenario would be if you are
changing the color of a ImageView using ColorFilter. When framework
receives a "-1" value, framework sets the ImageView ColorFilter to null,
restoring the ImageView to original state.
Screenshot:
https://teameos.slack.com/files/bigrushdog/F09T5S155/screenshot_2015-08-31-04-02-54.png
Change-Id: I4ad63576270de344a9e7430d9e63a248d37afd9f
Signed-off-by: xyyx <xyyx@mail.ru>
