Settings: Change color picker consistents in our settings for changed color picker

As described in the color picker commit you have two possibilities to set
the default color. In xml with a int color or in code with method
setNewPreviewColor(int color). We did also in past both (although one of both is
only needed) so I did here to demonstrate the functionalty which bases
on the newest aosp rules on this stage.

cheers

Change-Id: Id5881320bc50de742ab80ff6a9bc00399326e77c
Merge "Settings: Change color picker consistents in our settings for changed color picker" into jb4.2